Python Documentation contents¶
- What’s New in Python
- What’s New In Python 3.13
- Summary – Release Highlights
- New Features
- Other Language Changes
- New Modules
- Improved Modules
- argparse
- array
- ast
- asyncio
- base64
- compileall
- concurrent.futures
- configparser
- copy
- ctypes
- dbm
- dis
- doctest
- fractions
- glob
- importlib
- io
- ipaddress
- itertools
- marshal
- math
- mimetypes
- mmap
- multiprocessing
- os
- os.path
- pathlib
- pdb
- queue
- random
- re
- shutil
- site
- sqlite3
- ssl
- statistics
- subprocess
- sys
- tempfile
- time
- tkinter
- traceback
- types
- typing
- unicodedata
- venv
- warnings
- xml
- zipimport
- Optimizations
- Removed Modules And APIs
- New Deprecations
- CPython Bytecode Changes
- C API Changes
- Build Changes
- Porting to Python 3.13
- Regression Test Changes
- Notable changes in 3.13.1
- What’s New In Python 3.12
- What’s New In Python 3.11
- Summary – Release highlights
- New Features
- New Features Related to Type Hints
- Other Language Changes
- Other CPython Implementation Changes
- New Modules
- Improved Modules
- Optimizations
- Faster CPython
- CPython bytecode changes
- Deprecated
- Pending Removal in Python 3.12
- Removed
- Porting to Python 3.11
- Build Changes
- C API Changes
- Notable changes in 3.11.4
- Notable changes in 3.11.5
- What’s New In Python 3.10
- Summary – Release highlights
- New Features
- New Features Related to Type Hints
- Other Language Changes
- New Modules
- Improved Modules
- asyncio
- argparse
- array
- asynchat, asyncore, smtpd
- base64
- bdb
- bisect
- codecs
- collections.abc
- contextlib
- curses
- dataclasses
- distutils
- doctest
- encodings
- enum
- fileinput
- faulthandler
- gc
- glob
- hashlib
- hmac
- IDLE and idlelib
- importlib.metadata
- inspect
- itertools
- linecache
- os
- os.path
- pathlib
- platform
- pprint
- py_compile
- pyclbr
- shelve
- statistics
- site
- socket
- ssl
- sqlite3
- sys
- _thread
- threading
- traceback
- types
- typing
- unittest
- urllib.parse
- xml
- zipimport
- Optimizations
- Deprecated
- Removed
- Porting to Python 3.10
- CPython bytecode changes
- Build Changes
- C API Changes
- Notable security feature in 3.10.7
- Notable security feature in 3.10.8
- Notable changes in 3.10.12
- What’s New In Python 3.9
- Summary – Release highlights
- You should check for DeprecationWarning in your code
- New Features
- Other Language Changes
- New Modules
- Improved Modules
- Optimizations
- Deprecated
- Removed
- Porting to Python 3.9
- Build Changes
- C API Changes
- Notable changes in Python 3.9.1
- Notable changes in Python 3.9.2
- Notable changes in Python 3.9.3
- Notable changes in Python 3.9.5
- Notable security feature in 3.9.14
- Notable changes in 3.9.17
- What’s New In Python 3.8
- Summary – Release highlights
- New Features
- Assignment expressions
- Positional-only parameters
- Parallel filesystem cache for compiled bytecode files
- Debug build uses the same ABI as release build
- f-strings support
=
for self-documenting expressions and debugging - PEP 578: Python Runtime Audit Hooks
- PEP 587: Python Initialization Configuration
- PEP 590: Vectorcall: a fast calling protocol for CPython
- Pickle protocol 5 with out-of-band data buffers
- Other Language Changes
- New Modules
- Improved Modules
- ast
- asyncio
- builtins
- collections
- cProfile
- csv
- curses
- ctypes
- datetime
- functools
- gc
- gettext
- gzip
- IDLE and idlelib
- inspect
- io
- itertools
- json.tool
- logging
- math
- mmap
- multiprocessing
- os
- os.path
- pathlib
- pickle
- plistlib
- pprint
- py_compile
- shlex
- shutil
- socket
- ssl
- statistics
- sys
- tarfile
- threading
- tokenize
- tkinter
- time
- typing
- unicodedata
- unittest
- venv
- weakref
- xml
- xmlrpc
- Optimizations
- Build and C API Changes
- Deprecated
- API and Feature Removals
- Porting to Python 3.8
- Notable changes in Python 3.8.1
- Notable changes in Python 3.8.2
- Notable changes in Python 3.8.3
- Notable changes in Python 3.8.8
- Notable changes in Python 3.8.9
- Notable changes in Python 3.8.10
- Notable changes in Python 3.8.10
- Notable changes in Python 3.8.12
- Notable security feature in 3.8.14
- Notable changes in 3.8.17
- What’s New In Python 3.7
- Summary – Release Highlights
- New Features
- PEP 563: Postponed Evaluation of Annotations
- PEP 538: Legacy C Locale Coercion
- PEP 540: Forced UTF-8 Runtime Mode
- PEP 553: Built-in
breakpoint()
- PEP 539: New C API for Thread-Local Storage
- PEP 562: Customization of Access to Module Attributes
- PEP 564: New Time Functions With Nanosecond Resolution
- PEP 565: Show DeprecationWarning in
__main__
- PEP 560: Core Support for
typing
module and Generic Types - PEP 552: Hash-based .pyc Files
- PEP 545: Python Documentation Translations
- Python Development Mode (-X dev)
- Other Language Changes
- New Modules
- Improved Modules
- argparse
- asyncio
- binascii
- calendar
- collections
- compileall
- concurrent.futures
- contextlib
- cProfile
- crypt
- datetime
- dbm
- decimal
- dis
- distutils
- enum
- functools
- gc
- hmac
- http.client
- http.server
- idlelib and IDLE
- importlib
- io
- ipaddress
- itertools
- locale
- logging
- math
- mimetypes
- msilib
- multiprocessing
- os
- pathlib
- pdb
- py_compile
- pydoc
- queue
- re
- signal
- socket
- socketserver
- sqlite3
- ssl
- string
- subprocess
- sys
- time
- tkinter
- tracemalloc
- types
- unicodedata
- unittest
- unittest.mock
- urllib.parse
- uu
- uuid
- warnings
- xml
- xml.etree
- xmlrpc.server
- zipapp
- zipfile
- C API Changes
- Build Changes
- Optimizations
- Other CPython Implementation Changes
- Deprecated Python Behavior
- Deprecated Python modules, functions and methods
- Deprecated functions and types of the C API
- Platform Support Removals
- API and Feature Removals
- Module Removals
- Windows-only Changes
- Porting to Python 3.7
- Notable changes in Python 3.7.1
- Notable changes in Python 3.7.2
- Notable changes in Python 3.7.6
- Notable changes in Python 3.7.10
- Notable changes in Python 3.7.11
- Notable security feature in 3.7.14
- What’s New In Python 3.6
- Summary – Release highlights
- New Features
- PEP 498: Formatted string literals
- PEP 526: Syntax for variable annotations
- PEP 515: Underscores in Numeric Literals
- PEP 525: Asynchronous Generators
- PEP 530: Asynchronous Comprehensions
- PEP 487: Simpler customization of class creation
- PEP 487: Descriptor Protocol Enhancements
- PEP 519: Adding a file system path protocol
- PEP 495: Local Time Disambiguation
- PEP 529: Change Windows filesystem encoding to UTF-8
- PEP 528: Change Windows console encoding to UTF-8
- PEP 520: Preserving Class Attribute Definition Order
- PEP 468: Preserving Keyword Argument Order
- New dict implementation
- PEP 523: Adding a frame evaluation API to CPython
- PYTHONMALLOC environment variable
- DTrace and SystemTap probing support
- Other Language Changes
- New Modules
- Improved Modules
- array
- ast
- asyncio
- binascii
- cmath
- collections
- concurrent.futures
- contextlib
- datetime
- decimal
- distutils
- encodings
- enum
- faulthandler
- fileinput
- hashlib
- http.client
- idlelib and IDLE
- importlib
- inspect
- json
- logging
- math
- multiprocessing
- os
- pathlib
- pdb
- pickle
- pickletools
- pydoc
- random
- re
- readline
- rlcompleter
- shlex
- site
- sqlite3
- socket
- socketserver
- ssl
- statistics
- struct
- subprocess
- sys
- telnetlib
- time
- timeit
- tkinter
- traceback
- tracemalloc
- typing
- unicodedata
- unittest.mock
- urllib.request
- urllib.robotparser
- venv
- warnings
- winreg
- winsound
- xmlrpc.client
- zipfile
- zlib
- Optimizations
- Build and C API Changes
- Other Improvements
- Deprecated
- Removed
- Porting to Python 3.6
- Notable changes in Python 3.6.2
- Notable changes in Python 3.6.4
- Notable changes in Python 3.6.5
- Notable changes in Python 3.6.7
- Notable changes in Python 3.6.10
- Notable changes in Python 3.6.13
- Notable changes in Python 3.6.14
- What’s New In Python 3.5
- Summary – Release highlights
- New Features
- PEP 492 - Coroutines with async and await syntax
- PEP 465 - A dedicated infix operator for matrix multiplication
- PEP 448 - Additional Unpacking Generalizations
- PEP 461 - percent formatting support for bytes and bytearray
- PEP 484 - Type Hints
- PEP 471 - os.scandir() function – a better and faster directory iterator
- PEP 475: Retry system calls failing with EINTR
- PEP 479: Change StopIteration handling inside generators
- PEP 485: A function for testing approximate equality
- PEP 486: Make the Python Launcher aware of virtual environments
- PEP 488: Elimination of PYO files
- PEP 489: Multi-phase extension module initialization
- Other Language Changes
- New Modules
- Improved Modules
- argparse
- asyncio
- bz2
- cgi
- cmath
- code
- collections
- collections.abc
- compileall
- concurrent.futures
- configparser
- contextlib
- csv
- curses
- dbm
- difflib
- distutils
- doctest
- enum
- faulthandler
- functools
- glob
- gzip
- heapq
- http
- http.client
- idlelib and IDLE
- imaplib
- imghdr
- importlib
- inspect
- io
- ipaddress
- json
- linecache
- locale
- logging
- lzma
- math
- multiprocessing
- operator
- os
- pathlib
- pickle
- poplib
- re
- readline
- selectors
- shutil
- signal
- smtpd
- smtplib
- sndhdr
- socket
- ssl
- sqlite3
- subprocess
- sys
- sysconfig
- tarfile
- threading
- time
- timeit
- tkinter
- traceback
- types
- unicodedata
- unittest
- unittest.mock
- urllib
- wsgiref
- xmlrpc
- xml.sax
- zipfile
- Other module-level changes
- Optimizations
- Build and C API Changes
- Deprecated
- Removed
- Porting to Python 3.5
- Notable changes in Python 3.5.4
- What’s New In Python 3.4
- Summary – Release Highlights
- New Features
- New Modules
- Improved Modules
- abc
- aifc
- argparse
- audioop
- base64
- collections
- colorsys
- contextlib
- dbm
- dis
- doctest
- filecmp
- functools
- gc
- glob
- hashlib
- hmac
- html
- http
- idlelib and IDLE
- importlib
- inspect
- ipaddress
- logging
- marshal
- mmap
- multiprocessing
- operator
- os
- pdb
- pickle
- plistlib
- poplib
- pprint
- pty
- pydoc
- re
- resource
- select
- shelve
- shutil
- smtpd
- smtplib
- socket
- sqlite3
- ssl
- stat
- struct
- subprocess
- sunau
- sys
- tarfile
- textwrap
- threading
- traceback
- types
- urllib
- unittest
- venv
- wave
- weakref
- xml.etree
- zipfile
- CPython Implementation Changes
- Deprecated
- Removed
- Porting to Python 3.4
- Changed in 3.4.3
- What’s New In Python 3.3
- Summary – Release highlights
- PEP 405: Virtual Environments
- PEP 420: Implicit Namespace Packages
- PEP 3118: New memoryview implementation and buffer protocol documentation
- PEP 393: Flexible String Representation
- PEP 397: Python Launcher for Windows
- PEP 3151: Reworking the OS and IO exception hierarchy
- PEP 380: Syntax for Delegating to a Subgenerator
- PEP 409: Suppressing exception context
- PEP 414: Explicit Unicode literals
- PEP 3155: Qualified name for classes and functions
- PEP 412: Key-Sharing Dictionary
- PEP 362: Function Signature Object
- PEP 421: Adding sys.implementation
- Using importlib as the Implementation of Import
- Other Language Changes
- A Finer-Grained Import Lock
- Builtin functions and types
- New Modules
- Improved Modules
- abc
- array
- base64
- binascii
- bz2
- codecs
- collections
- contextlib
- crypt
- curses
- datetime
- decimal
- ftplib
- functools
- gc
- hmac
- http
- html
- imaplib
- inspect
- io
- itertools
- logging
- math
- mmap
- multiprocessing
- nntplib
- os
- pdb
- pickle
- pydoc
- re
- sched
- select
- shlex
- shutil
- signal
- smtpd
- smtplib
- socket
- socketserver
- sqlite3
- ssl
- stat
- struct
- subprocess
- sys
- tarfile
- tempfile
- textwrap
- threading
- time
- types
- unittest
- urllib
- webbrowser
- xml.etree.ElementTree
- zlib
- Optimizations
- Build and C API Changes
- Deprecated
- Porting to Python 3.3
- What’s New In Python 3.2
- PEP 384: Defining a Stable ABI
- PEP 389: Argparse Command Line Parsing Module
- PEP 391: Dictionary Based Configuration for Logging
- PEP 3148: The
concurrent.futures
module - PEP 3147: PYC Repository Directories
- PEP 3149: ABI Version Tagged .so Files
- PEP 3333: Python Web Server Gateway Interface v1.0.1
- Other Language Changes
- New, Improved, and Deprecated Modules
- elementtree
- functools
- itertools
- collections
- threading
- datetime and time
- math
- abc
- io
- reprlib
- logging
- csv
- contextlib
- decimal and fractions
- ftp
- popen
- select
- gzip and zipfile
- tarfile
- hashlib
- ast
- os
- shutil
- sqlite3
- html
- socket
- ssl
- nntp
- certificates
- imaplib
- http.client
- unittest
- random
- poplib
- asyncore
- tempfile
- inspect
- pydoc
- dis
- dbm
- ctypes
- site
- sysconfig
- pdb
- configparser
- urllib.parse
- mailbox
- turtledemo
- Multi-threading
- Optimizations
- Unicode
- Codecs
- Documentation
- IDLE
- Code Repository
- Build and C API Changes
- Porting to Python 3.2
- What’s New In Python 3.1
- What’s New In Python 3.0
- What’s New in Python 2.7
- The Future for Python 2.x
- Changes to the Handling of Deprecation Warnings
- Python 3.1 Features
- PEP 372: Adding an Ordered Dictionary to collections
- PEP 378: Format Specifier for Thousands Separator
- PEP 389: The argparse Module for Parsing Command Lines
- PEP 391: Dictionary-Based Configuration For Logging
- PEP 3106: Dictionary Views
- PEP 3137: The memoryview Object
- Other Language Changes
- New and Improved Modules
- Build and C API Changes
- Other Changes and Fixes
- Porting to Python 2.7
- New Features Added to Python 2.7 Maintenance Releases
- Two new environment variables for debug mode
- PEP 434: IDLE Enhancement Exception for All Branches
- PEP 466: Network Security Enhancements for Python 2.7
- PEP 477: Backport ensurepip (PEP 453) to Python 2.7
- PEP 476: Enabling certificate verification by default for stdlib http clients
- PEP 493: HTTPS verification migration tools for Python 2.7
- New
make regen-all
build target - Removal of
make touch
build target
- Acknowledgements
- What’s New in Python 2.6
- Python 3.0
- Changes to the Development Process
- PEP 343: The ‘with’ statement
- PEP 366: Explicit Relative Imports From a Main Module
- PEP 370: Per-user
site-packages
Directory - PEP 371: The
multiprocessing
Package - PEP 3101: Advanced String Formatting
- PEP 3105:
print
As a Function - PEP 3110: Exception-Handling Changes
- PEP 3112: Byte Literals
- PEP 3116: New I/O Library
- PEP 3118: Revised Buffer Protocol
- PEP 3119: Abstract Base Classes
- PEP 3127: Integer Literal Support and Syntax
- PEP 3129: Class Decorators
- PEP 3141: A Type Hierarchy for Numbers
- Other Language Changes
- New and Improved Modules
- Deprecations and Removals
- Build and C API Changes
- Porting to Python 2.6
- Acknowledgements
- What’s New in Python 2.5
- PEP 308: Conditional Expressions
- PEP 309: Partial Function Application
- PEP 314: Metadata for Python Software Packages v1.1
- PEP 328: Absolute and Relative Imports
- PEP 338: Executing Modules as Scripts
- PEP 341: Unified try/except/finally
- PEP 342: New Generator Features
- PEP 343: The ‘with’ statement
- PEP 352: Exceptions as New-Style Classes
- PEP 353: Using ssize_t as the index type
- PEP 357: The ‘__index__’ method
- Other Language Changes
- New, Improved, and Removed Modules
- Build and C API Changes
- Porting to Python 2.5
- Acknowledgements
- What’s New in Python 2.4
- PEP 218: Built-In Set Objects
- PEP 237: Unifying Long Integers and Integers
- PEP 289: Generator Expressions
- PEP 292: Simpler String Substitutions
- PEP 318: Decorators for Functions and Methods
- PEP 322: Reverse Iteration
- PEP 324: New subprocess Module
- PEP 327: Decimal Data Type
- PEP 328: Multi-line Imports
- PEP 331: Locale-Independent Float/String Conversions
- Other Language Changes
- New, Improved, and Deprecated Modules
- Build and C API Changes
- Porting to Python 2.4
- Acknowledgements
- What’s New in Python 2.3
- PEP 218: A Standard Set Datatype
- PEP 255: Simple Generators
- PEP 263: Source Code Encodings
- PEP 273: Importing Modules from ZIP Archives
- PEP 277: Unicode file name support for Windows NT
- PEP 278: Universal Newline Support
- PEP 279: enumerate()
- PEP 282: The logging Package
- PEP 285: A Boolean Type
- PEP 293: Codec Error Handling Callbacks
- PEP 301: Package Index and Metadata for Distutils
- PEP 302: New Import Hooks
- PEP 305: Comma-separated Files
- PEP 307: Pickle Enhancements
- Extended Slices
- Other Language Changes
- New, Improved, and Deprecated Modules
- Pymalloc: A Specialized Object Allocator
- Build and C API Changes
- Other Changes and Fixes
- Porting to Python 2.3
- Acknowledgements
- What’s New in Python 2.2
- Introduction
- PEPs 252 and 253: Type and Class Changes
- PEP 234: Iterators
- PEP 255: Simple Generators
- PEP 237: Unifying Long Integers and Integers
- PEP 238: Changing the Division Operator
- Unicode Changes
- PEP 227: Nested Scopes
- New and Improved Modules
- Interpreter Changes and Fixes
- Other Changes and Fixes
- Acknowledgements
- What’s New in Python 2.1
- Introduction
- PEP 227: Nested Scopes
- PEP 236: __future__ Directives
- PEP 207: Rich Comparisons
- PEP 230: Warning Framework
- PEP 229: New Build System
- PEP 205: Weak References
- PEP 232: Function Attributes
- PEP 235: Importing Modules on Case-Insensitive Platforms
- PEP 217: Interactive Display Hook
- PEP 208: New Coercion Model
- PEP 241: Metadata in Python Packages
- New and Improved Modules
- Other Changes and Fixes
- Acknowledgements
- What’s New in Python 2.0
- Introduction
- What About Python 1.6?
- New Development Process
- Unicode
- List Comprehensions
- Augmented Assignment
- String Methods
- Garbage Collection of Cycles
- Other Core Changes
- Porting to 2.0
- Extending/Embedding Changes
- Distutils: Making Modules Easy to Install
- XML Modules
- Module changes
- New modules
- IDLE Improvements
- Deleted and Deprecated Modules
- Acknowledgements
- Changelog
- Python next
- Python 3.13.0 final
- Python 3.13.0 release candidate 3
- Python 3.13.0 release candidate 2
- Python 3.13.0 release candidate 1
- Python 3.13.0 beta 4
- Python 3.13.0 beta 3
- Python 3.13.0 beta 2
- Python 3.13.0 beta 1
- Python 3.13.0 alpha 6
- Python 3.13.0 alpha 5
- Python 3.13.0 alpha 4
- Python 3.13.0 alpha 3
- Python 3.13.0 alpha 2
- Python 3.13.0 alpha 1
- Python 3.12.0 beta 1
- Python 3.12.0 alpha 7
- Python 3.12.0 alpha 6
- Python 3.12.0 alpha 5
- Python 3.12.0 alpha 4
- Python 3.12.0 alpha 3
- Python 3.12.0 alpha 2
- Python 3.12.0 alpha 1
- Python 3.11.0 beta 1
- Python 3.11.0 alpha 7
- Python 3.11.0 alpha 6
- Python 3.11.0 alpha 5
- Python 3.11.0 alpha 4
- Python 3.11.0 alpha 3
- Python 3.11.0 alpha 2
- Python 3.11.0 alpha 1
- Python 3.10.0 beta 1
- Python 3.10.0 alpha 7
- Python 3.10.0 alpha 6
- Python 3.10.0 alpha 5
- Python 3.10.0 alpha 4
- Python 3.10.0 alpha 3
- Python 3.10.0 alpha 2
- Python 3.10.0 alpha 1
- Python 3.9.0 beta 1
- Python 3.9.0 alpha 6
- Python 3.9.0 alpha 5
- Python 3.9.0 alpha 4
- Python 3.9.0 alpha 3
- Python 3.9.0 alpha 2
- Python 3.9.0 alpha 1
- Python 3.8.0 beta 1
- Python 3.8.0 alpha 4
- Python 3.8.0 alpha 3
- Python 3.8.0 alpha 2
- Python 3.8.0 alpha 1
- Python 3.7.0 final
- Python 3.7.0 release candidate 1
- Python 3.7.0 beta 5
- Python 3.7.0 beta 4
- Python 3.7.0 beta 3
- Python 3.7.0 beta 2
- Python 3.7.0 beta 1
- Python 3.7.0 alpha 4
- Python 3.7.0 alpha 3
- Python 3.7.0 alpha 2
- Python 3.7.0 alpha 1
- Python 3.6.6 final
- Python 3.6.6 release candidate 1
- Python 3.6.5 final
- Python 3.6.5 release candidate 1
- Python 3.6.4 final
- Python 3.6.4 release candidate 1
- Python 3.6.3 final
- Python 3.6.3 release candidate 1
- Python 3.6.2 final
- Python 3.6.2 release candidate 2
- Python 3.6.2 release candidate 1
- Python 3.6.1 final
- Python 3.6.1 release candidate 1
- Python 3.6.0 final
- Python 3.6.0 release candidate 2
- Python 3.6.0 release candidate 1
- Python 3.6.0 beta 4
- Python 3.6.0 beta 3
- Python 3.6.0 beta 2
- Python 3.6.0 beta 1
- Python 3.6.0 alpha 4
- Python 3.6.0 alpha 3
- Python 3.6.0 alpha 2
- Python 3.6.0 alpha 1
- Python 3.5.5 final
- Python 3.5.5 release candidate 1
- Python 3.5.4 final
- Python 3.5.4 release candidate 1
- Python 3.5.3 final
- Python 3.5.3 release candidate 1
- Python 3.5.2 final
- Python 3.5.2 release candidate 1
- Python 3.5.1 final
- Python 3.5.1 release candidate 1
- Python 3.5.0 final
- Python 3.5.0 release candidate 4
- Python 3.5.0 release candidate 3
- Python 3.5.0 release candidate 2
- Python 3.5.0 release candidate 1
- Python 3.5.0 beta 4
- Python 3.5.0 beta 3
- Python 3.5.0 beta 2
- Python 3.5.0 beta 1
- Python 3.5.0 alpha 4
- Python 3.5.0 alpha 3
- Python 3.5.0 alpha 2
- Python 3.5.0 alpha 1
- What’s New In Python 3.13
- The Python Tutorial
- 1. Whetting Your Appetite
- 2. Using the Python Interpreter
- 3. An Informal Introduction to Python
- 4. More Control Flow Tools
- 4.1.
if
Statements - 4.2.
for
Statements - 4.3. The
range()
Function - 4.4.
break
andcontinue
Statements - 4.5.
else
Clauses on Loops - 4.6.
pass
Statements - 4.7.
match
Statements - 4.8. Defining Functions
- 4.9. More on Defining Functions
- 4.10. Intermezzo: Coding Style
- 4.1.
- 5. Data Structures
- 6. Modules
- 7. Input and Output
- 8. Errors and Exceptions
- 9. Classes
- 10. Brief Tour of the Standard Library
- 10.1. Operating System Interface
- 10.2. File Wildcards
- 10.3. Command Line Arguments
- 10.4. Error Output Redirection and Program Termination
- 10.5. String Pattern Matching
- 10.6. Mathematics
- 10.7. Internet Access
- 10.8. Dates and Times
- 10.9. Data Compression
- 10.10. Performance Measurement
- 10.11. Quality Control
- 10.12. Batteries Included
- 11. Brief Tour of the Standard Library — Part II
- 12. Virtual Environments and Packages
- 13. What Now?
- 14. Interactive Input Editing and History Substitution
- 15. Floating-Point Arithmetic: Issues and Limitations
- 16. Appendix
- Python Setup and Usage
- 1. Command line and environment
- 2. Using Python on Unix platforms
- 3. Configure Python
- 3.1. Build Requirements
- 3.2. Generated files
- 3.3. Configure Options
- 3.3.1. General Options
- 3.3.2. C compiler options
- 3.3.3. Linker options
- 3.3.4. Options for third-party dependencies
- 3.3.5. WebAssembly Options
- 3.3.6. Install Options
- 3.3.7. Performance options
- 3.3.8. Python Debug Build
- 3.3.9. Debug options
- 3.3.10. Linker options
- 3.3.11. Libraries options
- 3.3.12. Security Options
- 3.3.13. macOS Options
- 3.3.14. iOS Options
- 3.3.15. Cross Compiling Options
- 3.4. Python Build System
- 3.5. Compiler and linker flags
- 4. Using Python on Windows
- 4.1. The full installer
- 4.2. The Microsoft Store package
- 4.3. The nuget.org packages
- 4.4. The embeddable package
- 4.5. Alternative bundles
- 4.6. Configuring Python
- 4.7. UTF-8 mode
- 4.8. Python Launcher for Windows
- 4.9. Finding modules
- 4.10. Additional modules
- 4.11. Compiling Python on Windows
- 4.12. Other Platforms
- 5. Using Python on macOS
- 6. Using Python on Android
- 7. Using Python on iOS
- 8. Editors and IDEs
- The Python Language Reference
- 1. Introduction
- 2. Lexical analysis
- 3. Data model
- 3.1. Objects, values and types
- 3.2. The standard type hierarchy
- 3.2.1. None
- 3.2.2. NotImplemented
- 3.2.3. Ellipsis
- 3.2.4.
numbers.Number
- 3.2.5. Sequences
- 3.2.6. Set types
- 3.2.7. Mappings
- 3.2.8. Callable types
- 3.2.9. Modules
- 3.2.10. Custom classes
- 3.2.11. Class instances
- 3.2.12. I/O objects (also known as file objects)
- 3.2.13. Internal types
- 3.3. Special method names
- 3.3.1. Basic customization
- 3.3.2. Customizing attribute access
- 3.3.3. Customizing class creation
- 3.3.4. Customizing instance and subclass checks
- 3.3.5. Emulating generic types
- 3.3.6. Emulating callable objects
- 3.3.7. Emulating container types
- 3.3.8. Emulating numeric types
__add__()
__sub__()
__mul__()
__matmul__()
__truediv__()
__floordiv__()
__mod__()
__divmod__()
__pow__()
__lshift__()
__rshift__()
__and__()
__xor__()
__or__()
__radd__()
__rsub__()
__rmul__()
__rmatmul__()
__rtruediv__()
__rfloordiv__()
__rmod__()
__rdivmod__()
__rpow__()
__rlshift__()
__rrshift__()
__rand__()
__rxor__()
__ror__()
__iadd__()
__isub__()
__imul__()
__imatmul__()
__itruediv__()
__ifloordiv__()
__imod__()
__ipow__()
__ilshift__()
__irshift__()
__iand__()
__ixor__()
__ior__()
__neg__()
__pos__()
__abs__()
__invert__()
__complex__()
__int__()
__float__()
__index__()
__round__()
__trunc__()
__floor__()
__ceil__()
- 3.3.9. With Statement Context Managers
- 3.3.10. Customizing positional arguments in class pattern matching
- 3.3.11. Emulating buffer types
- 3.3.12. Special method lookup
- 3.4. Coroutines
- 4. Execution model
- 5. The import system
- 6. Expressions
- 6.1. Arithmetic conversions
- 6.2. Atoms
- 6.3. Primaries
- 6.4. Await expression
- 6.5. The power operator
- 6.6. Unary arithmetic and bitwise operations
- 6.7. Binary arithmetic operations
- 6.8. Shifting operations
- 6.9. Binary bitwise operations
- 6.10. Comparisons
- 6.11. Boolean operations
- 6.12. Assignment expressions
- 6.13. Conditional expressions
- 6.14. Lambdas
- 6.15. Expression lists
- 6.16. Evaluation order
- 6.17. Operator precedence
- 7. Simple statements
- 7.1. Expression statements
- 7.2. Assignment statements
- 7.3. The
assert
statement - 7.4. The
pass
statement - 7.5. The
del
statement - 7.6. The
return
statement - 7.7. The
yield
statement - 7.8. The
raise
statement - 7.9. The
break
statement - 7.10. The
continue
statement - 7.11. The
import
statement - 7.12. The
global
statement - 7.13. The
nonlocal
statement - 7.14. The
type
statement
- 8. Compound statements
- 8.1. The
if
statement - 8.2. The
while
statement - 8.3. The
for
statement - 8.4. The
try
statement - 8.5. The
with
statement - 8.6. The
match
statement - 8.7. Function definitions
- 8.8. Class definitions
- 8.9. Coroutines
- 8.10. Type parameter lists
- 8.1. The
- 9. Top-level components
- 10. Full Grammar specification
- The Python Standard Library
- Introduction
- Built-in Functions
abs()
aiter()
all()
anext()
any()
ascii()
bin()
bool
breakpoint()
callable()
chr()
classmethod()
compile()
complex
delattr()
dir()
divmod()
enumerate()
eval()
exec()
filter()
float
format()
getattr()
globals()
hasattr()
hash()
help()
hex()
id()
input()
int
isinstance()
issubclass()
iter()
len()
locals()
map()
max()
min()
next()
object
oct()
open()
ord()
pow()
print()
property
repr()
reversed()
round()
setattr()
slice
sorted()
staticmethod()
sum()
super
type
vars()
zip()
__import__()
- Built-in Constants
- Built-in Types
- Truth Value Testing
- Boolean Operations —
and
,or
,not
- Comparisons
- Numeric Types —
int
,float
,complex
- Boolean Type -
bool
- Iterator Types
- Sequence Types —
list
,tuple
,range
- Text Sequence Type —
str
str
- String Methods
capitalize()
casefold()
center()
count()
encode()
endswith()
expandtabs()
find()
format()
format_map()
index()
isalnum()
isalpha()
isascii()
isdecimal()
isdigit()
isidentifier()
islower()
isnumeric()
isprintable()
isspace()
istitle()
isupper()
join()
ljust()
lower()
lstrip()
maketrans()
partition()
removeprefix()
removesuffix()
replace()
rfind()
rindex()
rjust()
rpartition()
rsplit()
rstrip()
split()
splitlines()
startswith()
strip()
swapcase()
title()
translate()
upper()
zfill()
printf
-style String Formatting
- Binary Sequence Types —
bytes
,bytearray
,memoryview
- Bytes Objects
- Bytearray Objects
- Bytes and Bytearray Operations
count()
count()
removeprefix()
removeprefix()
removesuffix()
removesuffix()
decode()
decode()
endswith()
endswith()
find()
find()
index()
index()
join()
join()
maketrans()
maketrans()
partition()
partition()
replace()
replace()
rfind()
rfind()
rindex()
rindex()
rpartition()
rpartition()
startswith()
startswith()
translate()
translate()
center()
center()
ljust()
ljust()
lstrip()
lstrip()
rjust()
rjust()
rsplit()
rsplit()
rstrip()
rstrip()
split()
split()
strip()
strip()
capitalize()
capitalize()
expandtabs()
expandtabs()
isalnum()
isalnum()
isalpha()
isalpha()
isascii()
isascii()
isdigit()
isdigit()
islower()
islower()
isspace()
isspace()
istitle()
istitle()
isupper()
isupper()
lower()
lower()
splitlines()
splitlines()
swapcase()
swapcase()
title()
title()
upper()
upper()
zfill()
zfill()
printf
-style Bytes Formatting- Memory Views
- Set Types —
set
,frozenset
- Mapping Types —
dict
- Context Manager Types
- Type Annotation Types — Generic Alias, Union
- Other Built-in Types
- Special Attributes
- Integer string conversion length limitation
- Built-in Exceptions
- Exception context
- Inheriting from built-in exceptions
- Base classes
- Concrete exceptions
AssertionError
AttributeError
EOFError
FloatingPointError
GeneratorExit
ImportError
ModuleNotFoundError
IndexError
KeyError
KeyboardInterrupt
MemoryError
NameError
NotImplementedError
OSError
OverflowError
PythonFinalizationError
RecursionError
ReferenceError
RuntimeError
StopIteration
StopAsyncIteration
SyntaxError
IndentationError
TabError
SystemError
SystemExit
TypeError
UnboundLocalError
UnicodeError
UnicodeEncodeError
UnicodeDecodeError
UnicodeTranslateError
ValueError
ZeroDivisionError
EnvironmentError
IOError
WindowsError
- OS exceptions
- Warnings
- Exception groups
- Exception hierarchy
- Text Processing Services
string
— Common string operationsre
— Regular expression operationsdifflib
— Helpers for computing deltastextwrap
— Text wrapping and fillingunicodedata
— Unicode Databasestringprep
— Internet String Preparationreadline
— GNU readline interfacerlcompleter
— Completion function for GNU readline
- Binary Data Services
struct
— Interpret bytes as packed binary datacodecs
— Codec registry and base classesencode()
decode()
lookup()
CodecInfo
getencoder()
getdecoder()
getincrementalencoder()
getincrementaldecoder()
getreader()
getwriter()
register()
unregister()
open()
EncodedFile()
iterencode()
iterdecode()
BOM
BOM_BE
BOM_LE
BOM_UTF8
BOM_UTF16
BOM_UTF16_BE
BOM_UTF16_LE
BOM_UTF32
BOM_UTF32_BE
BOM_UTF32_LE
- Codec Base Classes
- Encodings and Unicode
- Standard Encodings
- Python Specific Encodings
encodings.idna
— Internationalized Domain Names in Applicationsencodings.mbcs
— Windows ANSI codepageencodings.utf_8_sig
— UTF-8 codec with BOM signature
- Data Types
datetime
— Basic date and time types- Aware and Naive Objects
- Constants
- Available Types
timedelta
Objectsdate
Objectsdatetime
Objectsdatetime
today()
now()
utcnow()
fromtimestamp()
utcfromtimestamp()
fromordinal()
combine()
fromisoformat()
fromisocalendar()
strptime()
min
max
resolution
year
month
day
hour
minute
second
microsecond
tzinfo
fold
date()
time()
timetz()
replace()
astimezone()
utcoffset()
dst()
tzname()
timetuple()
utctimetuple()
toordinal()
timestamp()
weekday()
isoweekday()
isocalendar()
isoformat()
__str__()
ctime()
strftime()
__format__()
- Examples of Usage:
datetime
time
Objectstzinfo
Objectstimezone
Objectsstrftime()
andstrptime()
Behavior
zoneinfo
— IANA time zone supportcalendar
— General calendar-related functionsCalendar
TextCalendar
HTMLCalendar
LocaleTextCalendar
LocaleHTMLCalendar
setfirstweekday()
firstweekday()
isleap()
leapdays()
weekday()
weekheader()
monthrange()
monthcalendar()
prmonth()
month()
prcal()
calendar()
timegm()
day_name
day_abbr
MONDAY
TUESDAY
WEDNESDAY
THURSDAY
FRIDAY
SATURDAY
SUNDAY
Day
month_name
month_abbr
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
Month
IllegalMonthError
IllegalWeekdayError
- Command-Line Usage
collections
— Container datatypescollections.abc
— Abstract Base Classes for Containersheapq
— Heap queue algorithmbisect
— Array bisection algorithmarray
— Efficient arrays of numeric valuesweakref
— Weak referencestypes
— Dynamic type creation and names for built-in types- Dynamic Type Creation
- Standard Interpreter Types
NoneType
FunctionType
LambdaType
GeneratorType
CoroutineType
AsyncGeneratorType
CodeType
CellType
MethodType
BuiltinFunctionType
BuiltinMethodType
WrapperDescriptorType
MethodWrapperType
NotImplementedType
MethodDescriptorType
ClassMethodDescriptorType
ModuleType
EllipsisType
GenericAlias
UnionType
TracebackType
FrameType
GetSetDescriptorType
MemberDescriptorType
MappingProxyType
CapsuleType
- Additional Utility Classes and Functions
- Coroutine Utility Functions
copy
— Shallow and deep copy operationspprint
— Data pretty printerreprlib
— Alternaterepr()
implementationenum
— Support for enumerationsgraphlib
— Functionality to operate with graph-like structures
- Numeric and Mathematical Modules
numbers
— Numeric abstract base classesmath
— Mathematical functionscmath
— Mathematical functions for complex numbersdecimal
— Decimal fixed-point and floating-point arithmetic- Quick-start Tutorial
- Decimal objects
Decimal
adjusted()
as_integer_ratio()
as_tuple()
canonical()
compare()
compare_signal()
compare_total()
compare_total_mag()
conjugate()
copy_abs()
copy_negate()
copy_sign()
exp()
from_float()
fma()
is_canonical()
is_finite()
is_infinite()
is_nan()
is_normal()
is_qnan()
is_signed()
is_snan()
is_subnormal()
is_zero()
ln()
log10()
logb()
logical_and()
logical_invert()
logical_or()
logical_xor()
max()
max_mag()
min()
min_mag()
next_minus()
next_plus()
next_toward()
normalize()
number_class()
quantize()
radix()
remainder_near()
rotate()
same_quantum()
scaleb()
shift()
sqrt()
to_eng_string()
to_integral()
to_integral_exact()
to_integral_value()
- Logical operands
- Context objects
getcontext()
setcontext()
localcontext()
BasicContext
ExtendedContext
DefaultContext
Context
clear_flags()
clear_traps()
copy()
copy_decimal()
create_decimal()
create_decimal_from_float()
Etiny()
Etop()
abs()
add()
canonical()
compare()
compare_signal()
compare_total()
compare_total_mag()
copy_abs()
copy_negate()
copy_sign()
divide()
divide_int()
divmod()
exp()
fma()
is_canonical()
is_finite()
is_infinite()
is_nan()
is_normal()
is_qnan()
is_signed()
is_snan()
is_subnormal()
is_zero()
ln()
log10()
logb()
logical_and()
logical_invert()
logical_or()
logical_xor()
max()
max_mag()
min()
min_mag()
minus()
multiply()
next_minus()
next_plus()
next_toward()
normalize()
number_class()
plus()
power()
quantize()
radix()
remainder()
remainder_near()
rotate()
same_quantum()
scaleb()
shift()
sqrt()
subtract()
to_eng_string()
to_integral_exact()
to_sci_string()
- Constants
- Rounding modes
- Signals
- Floating-Point Notes
- Working with threads
- Recipes
- Decimal FAQ
fractions
— Rational numbersrandom
— Generate pseudo-random numbersstatistics
— Mathematical statistics functions
- Functional Programming Modules
itertools
— Functions creating iterators for efficient loopingfunctools
— Higher-order functions and operations on callable objectsoperator
— Standard operators as functionslt()
le()
eq()
ne()
ge()
gt()
__lt__()
__le__()
__eq__()
__ne__()
__ge__()
__gt__()
not_()
__not__()
truth()
is_()
is_not()
abs()
__abs__()
add()
__add__()
and_()
__and__()
floordiv()
__floordiv__()
index()
__index__()
inv()
invert()
__inv__()
__invert__()
lshift()
__lshift__()
mod()
__mod__()
mul()
__mul__()
matmul()
__matmul__()
neg()
__neg__()
or_()
__or__()
pos()
__pos__()
pow()
__pow__()
rshift()
__rshift__()
sub()
__sub__()
truediv()
__truediv__()
xor()
__xor__()
concat()
__concat__()
contains()
__contains__()
countOf()
delitem()
__delitem__()
getitem()
__getitem__()
indexOf()
setitem()
__setitem__()
length_hint()
call()
__call__()
attrgetter()
itemgetter()
methodcaller()
- Mapping Operators to Functions
- In-place Operators
- File and Directory Access
pathlib
— Object-oriented filesystem paths- Basic use
- Exceptions
- Pure paths
- Concrete paths
- Pattern language
- Comparison to the
glob
module - Comparison to the
os
andos.path
modules
os.path
— Common pathname manipulationsabspath()
basename()
commonpath()
commonprefix()
dirname()
exists()
lexists()
expanduser()
expandvars()
getatime()
getmtime()
getctime()
getsize()
isabs()
isfile()
isdir()
isjunction()
islink()
ismount()
isdevdrive()
isreserved()
join()
normcase()
normpath()
realpath()
relpath()
samefile()
sameopenfile()
samestat()
split()
splitdrive()
splitroot()
splitext()
supports_unicode_filenames
fileinput
— Iterate over lines from multiple input streamsstat
— Interpretingstat()
resultsS_ISDIR()
S_ISCHR()
S_ISBLK()
S_ISREG()
S_ISFIFO()
S_ISLNK()
S_ISSOCK()
S_ISDOOR()
S_ISPORT()
S_ISWHT()
S_IMODE()
S_IFMT()
filemode()
ST_MODE
ST_INO
ST_DEV
ST_NLINK
ST_UID
ST_GID
ST_SIZE
ST_ATIME
ST_MTIME
ST_CTIME
S_IFSOCK
S_IFLNK
S_IFREG
S_IFBLK
S_IFDIR
S_IFCHR
S_IFIFO
S_IFDOOR
S_IFPORT
S_IFWHT
S_ISUID
S_ISGID
S_ISVTX
S_IRWXU
S_IRUSR
S_IWUSR
S_IXUSR
S_IRWXG
S_IRGRP
S_IWGRP
S_IXGRP
S_IRWXO
S_IROTH
S_IWOTH
S_IXOTH
S_ENFMT
S_IREAD
S_IWRITE
S_IEXEC
UF_SETTABLE
UF_NODUMP
UF_IMMUTABLE
UF_APPEND
UF_OPAQUE
UF_NOUNLINK
UF_COMPRESSED
UF_TRACKED
UF_DATAVAULT
UF_HIDDEN
SF_SETTABLE
SF_SUPPORTED
SF_SYNTHETIC
SF_ARCHIVED
SF_IMMUTABLE
SF_APPEND
SF_RESTRICTED
SF_NOUNLINK
SF_SNAPSHOT
SF_FIRMLINK
SF_DATALESS
FILE_ATTRIBUTE_ARCHIVE
FILE_ATTRIBUTE_COMPRESSED
FILE_ATTRIBUTE_DEVICE
FILE_ATTRIBUTE_DIRECTORY
FILE_ATTRIBUTE_ENCRYPTED
FILE_ATTRIBUTE_HIDDEN
FILE_ATTRIBUTE_INTEGRITY_STREAM
FILE_ATTRIBUTE_NORMAL
FILE_ATTRIBUTE_NOT_CONTENT_INDEXED
FILE_ATTRIBUTE_NO_SCRUB_DATA
FILE_ATTRIBUTE_OFFLINE
FILE_ATTRIBUTE_READONLY
FILE_ATTRIBUTE_REPARSE_POINT
FILE_ATTRIBUTE_SPARSE_FILE
FILE_ATTRIBUTE_SYSTEM
FILE_ATTRIBUTE_TEMPORARY
FILE_ATTRIBUTE_VIRTUAL
IO_REPARSE_TAG_SYMLINK
IO_REPARSE_TAG_MOUNT_POINT
IO_REPARSE_TAG_APPEXECLINK
filecmp
— File and Directory Comparisonstempfile
— Generate temporary files and directoriesglob
— Unix style pathname pattern expansionfnmatch
— Unix filename pattern matchinglinecache
— Random access to text linesshutil
— High-level file operations
- Data Persistence
pickle
— Python object serializationcopyreg
— Registerpickle
support functionsshelve
— Python object persistencemarshal
— Internal Python object serializationdbm
— Interfaces to Unix “databases”sqlite3
— DB-API 2.0 interface for SQLite databases- Tutorial
- Reference
- Module functions
- Module constants
LEGACY_TRANSACTION_CONTROL
PARSE_COLNAMES
PARSE_DECLTYPES
SQLITE_OK
SQLITE_DENY
SQLITE_IGNORE
apilevel
paramstyle
sqlite_version
sqlite_version_info
threadsafety
version
version_info
SQLITE_DBCONFIG_DEFENSIVE
SQLITE_DBCONFIG_DQS_DDL
SQLITE_DBCONFIG_DQS_DML
SQLITE_DBCONFIG_ENABLE_FKEY
SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER
SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION
SQLITE_DBCONFIG_ENABLE_QPSG
SQLITE_DBCONFIG_ENABLE_TRIGGER
SQLITE_DBCONFIG_ENABLE_VIEW
SQLITE_DBCONFIG_LEGACY_ALTER_TABLE
SQLITE_DBCONFIG_LEGACY_FILE_FORMAT
SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE
SQLITE_DBCONFIG_RESET_DATABASE
SQLITE_DBCONFIG_TRIGGER_EQP
SQLITE_DBCONFIG_TRUSTED_SCHEMA
SQLITE_DBCONFIG_WRITABLE_SCHEMA
- Connection objects
Connection
cursor()
blobopen()
commit()
rollback()
close()
execute()
executemany()
executescript()
create_function()
create_aggregate()
create_window_function()
create_collation()
interrupt()
set_authorizer()
set_progress_handler()
set_trace_callback()
enable_load_extension()
load_extension()
iterdump()
backup()
getlimit()
setlimit()
getconfig()
setconfig()
serialize()
deserialize()
autocommit
in_transaction
isolation_level
row_factory
text_factory
total_changes
- Cursor objects
- Row objects
- Blob objects
- PrepareProtocol objects
- Exceptions
- SQLite and Python types
- Default adapters and converters (deprecated)
- Command-line interface
- How-to guides
- How to use placeholders to bind values in SQL queries
- How to adapt custom Python types to SQLite values
- How to convert SQLite values to custom Python types
- Adapter and converter recipes
- How to use connection shortcut methods
- How to use the connection context manager
- How to work with SQLite URIs
- How to create and use row factories
- How to handle non-UTF-8 text encodings
- Explanation
- Data Compression and Archiving
zlib
— Compression compatible with gzipgzip
— Support for gzip filesbz2
— Support for bzip2 compressionlzma
— Compression using the LZMA algorithmzipfile
— Work with ZIP archivestarfile
— Read and write tar archive filesopen()
is_tarfile()
TarError
ReadError
CompressionError
StreamError
ExtractError
HeaderError
FilterError
AbsolutePathError
OutsideDestinationError
SpecialFileError
AbsoluteLinkError
LinkOutsideDestinationError
ENCODING
REGTYPE
AREGTYPE
LNKTYPE
SYMTYPE
CHRTYPE
BLKTYPE
DIRTYPE
FIFOTYPE
CONTTYPE
GNUTYPE_LONGNAME
GNUTYPE_LONGLINK
GNUTYPE_SPARSE
USTAR_FORMAT
GNU_FORMAT
PAX_FORMAT
DEFAULT_FORMAT
- TarFile Objects
- TarInfo Objects
- Extraction filters
- Command-Line Interface
- Examples
- Supported tar formats
- Unicode issues
- File Formats
csv
— CSV File Reading and Writingconfigparser
— Configuration file parsertomllib
— Parse TOML filesnetrc
— netrc file processingplistlib
— Generate and parse Apple.plist
files
- Cryptographic Services
- Generic Operating System Services
os
— Miscellaneous operating system interfaceserror
name
- File Names, Command Line Arguments, and Environment Variables
- Python UTF-8 Mode
- Process Parameters
ctermid()
environ
environb
fsencode()
fsdecode()
fspath()
PathLike
getenv()
getenvb()
get_exec_path()
getegid()
geteuid()
getgid()
getgrouplist()
getgroups()
getlogin()
getpgid()
getpgrp()
getpid()
getppid()
getpriority()
PRIO_PROCESS
PRIO_PGRP
PRIO_USER
PRIO_DARWIN_THREAD
PRIO_DARWIN_PROCESS
PRIO_DARWIN_BG
PRIO_DARWIN_NONUI
getresuid()
getresgid()
getuid()
initgroups()
putenv()
setegid()
seteuid()
setgid()
setgroups()
setns()
setpgrp()
setpgid()
setpriority()
setregid()
setresgid()
setresuid()
setreuid()
getsid()
setsid()
setuid()
strerror()
supports_bytes_environ
umask()
uname()
unsetenv()
unshare()
CLONE_FILES
CLONE_FS
CLONE_NEWCGROUP
CLONE_NEWIPC
CLONE_NEWNET
CLONE_NEWNS
CLONE_NEWPID
CLONE_NEWTIME
CLONE_NEWUSER
CLONE_NEWUTS
CLONE_SIGHAND
CLONE_SYSVSEM
CLONE_THREAD
CLONE_VM
- File Object Creation
- File Descriptor Operations
close()
closerange()
copy_file_range()
device_encoding()
dup()
dup2()
fchmod()
fchown()
fdatasync()
fpathconf()
fstat()
fstatvfs()
fsync()
ftruncate()
get_blocking()
grantpt()
isatty()
lockf()
F_LOCK
F_TLOCK
F_ULOCK
F_TEST
login_tty()
lseek()
SEEK_SET
SEEK_CUR
SEEK_END
SEEK_HOLE
SEEK_DATA
open()
O_RDONLY
O_WRONLY
O_RDWR
O_APPEND
O_CREAT
O_EXCL
O_TRUNC
O_DSYNC
O_RSYNC
O_SYNC
O_NDELAY
O_NONBLOCK
O_NOCTTY
O_CLOEXEC
O_BINARY
O_NOINHERIT
O_SHORT_LIVED
O_TEMPORARY
O_RANDOM
O_SEQUENTIAL
O_TEXT
O_EVTONLY
O_FSYNC
O_SYMLINK
O_NOFOLLOW_ANY
O_ASYNC
O_DIRECT
O_DIRECTORY
O_NOFOLLOW
O_NOATIME
O_PATH
O_TMPFILE
O_SHLOCK
O_EXLOCK
openpty()
pipe()
pipe2()
posix_fallocate()
posix_fadvise()
POSIX_FADV_NORMAL
POSIX_FADV_SEQUENTIAL
POSIX_FADV_RANDOM
POSIX_FADV_NOREUSE
POSIX_FADV_WILLNEED
POSIX_FADV_DONTNEED
pread()
posix_openpt()
preadv()
RWF_NOWAIT
RWF_HIPRI
ptsname()
pwrite()
pwritev()
RWF_DSYNC
RWF_SYNC
RWF_APPEND
read()
sendfile()
SF_NODISKIO
SF_MNOWAIT
SF_SYNC
SF_NOCACHE
set_blocking()
splice()
SPLICE_F_MOVE
SPLICE_F_NONBLOCK
SPLICE_F_MORE
readv()
tcgetpgrp()
tcsetpgrp()
ttyname()
unlockpt()
write()
writev()
- Querying the size of a terminal
- Inheritance of File Descriptors
- Files and Directories
access()
F_OK
R_OK
W_OK
X_OK
chdir()
chflags()
chmod()
chown()
chroot()
fchdir()
getcwd()
getcwdb()
lchflags()
lchmod()
lchown()
link()
listdir()
listdrives()
listmounts()
listvolumes()
lstat()
mkdir()
makedirs()
mkfifo()
mknod()
major()
minor()
makedev()
pathconf()
pathconf_names
readlink()
remove()
removedirs()
rename()
renames()
replace()
rmdir()
scandir()
DirEntry
stat()
stat_result
statvfs()
supports_dir_fd
supports_effective_ids
supports_fd
supports_follow_symlinks
symlink()
sync()
truncate()
unlink()
utime()
walk()
fwalk()
memfd_create()
MFD_CLOEXEC
MFD_ALLOW_SEALING
MFD_HUGETLB
MFD_HUGE_SHIFT
MFD_HUGE_MASK
MFD_HUGE_64KB
MFD_HUGE_512KB
MFD_HUGE_1MB
MFD_HUGE_2MB
MFD_HUGE_8MB
MFD_HUGE_16MB
MFD_HUGE_32MB
MFD_HUGE_256MB
MFD_HUGE_512MB
MFD_HUGE_1GB
MFD_HUGE_2GB
MFD_HUGE_16GB
eventfd()
eventfd_read()
eventfd_write()
EFD_CLOEXEC
EFD_NONBLOCK
EFD_SEMAPHORE
- Timer File Descriptors
- Linux extended attributes
- Process Management
abort()
add_dll_directory()
execl()
execle()
execlp()
execlpe()
execv()
execve()
execvp()
execvpe()
_exit()
EX_OK
EX_USAGE
EX_DATAERR
EX_NOINPUT
EX_NOUSER
EX_NOHOST
EX_UNAVAILABLE
EX_SOFTWARE
EX_OSERR
EX_OSFILE
EX_CANTCREAT
EX_IOERR
EX_TEMPFAIL
EX_PROTOCOL
EX_NOPERM
EX_CONFIG
EX_NOTFOUND
fork()
forkpty()
kill()
killpg()
nice()
pidfd_open()
plock()
popen()
posix_spawn()
posix_spawnp()
register_at_fork()
spawnl()
spawnle()
spawnlp()
spawnlpe()
spawnv()
spawnve()
spawnvp()
spawnvpe()
P_NOWAIT
P_NOWAITO
P_WAIT
P_DETACH
P_OVERLAY
startfile()
system()
times()
wait()
waitid()
waitpid()
wait3()
wait4()
P_PID
P_PGID
P_ALL
P_PIDFD
WCONTINUED
WEXITED
WSTOPPED
WUNTRACED
WNOHANG
WNOWAIT
CLD_EXITED
CLD_KILLED
CLD_DUMPED
CLD_TRAPPED
CLD_STOPPED
CLD_CONTINUED
waitstatus_to_exitcode()
WCOREDUMP()
WIFCONTINUED()
WIFSTOPPED()
WIFSIGNALED()
WIFEXITED()
WEXITSTATUS()
WSTOPSIG()
WTERMSIG()
- Interface to the scheduler
SCHED_OTHER
SCHED_BATCH
SCHED_IDLE
SCHED_SPORADIC
SCHED_FIFO
SCHED_RR
SCHED_RESET_ON_FORK
sched_param
sched_get_priority_min()
sched_get_priority_max()
sched_setscheduler()
sched_getscheduler()
sched_setparam()
sched_getparam()
sched_rr_get_interval()
sched_yield()
sched_setaffinity()
sched_getaffinity()
- Miscellaneous System Information