Python Module Index

a | b | c | d | e | f | g | h | i | j | l | m | o | p | q | r | s | t | u | v | w | x | z
abc Abstract Base Classes
argparse Command-line option and argument parsing.
array Manage sequences of fixed-type data efficiently.
asyncio Asynchronous I/O, event loop, and concurrency tools
atexit Register shutdown callbacks
base64 Encode binary data with ASCII characters.
bisect Maintains a list in sorted order without having to call sort each time an item is added to the list.
bz2 bzip2 compression
calendar Classes for working with year, month, and week-oriented values.
cgitb Mis-named module that provides extended traceback information.
cmd Create line-oriented command processors.
codecs String encoding and decoding.
collections Container data types. Abstract base classes for container data types.
compileall Byte-compile Source Files
    concurrent.futures Managing Pools of Concurrent Tasks
configparser Read/write configuration files similar to Windows INI files
contextlib Utilities for creating and working with context managers.
copy Duplicating objects.
csv Read and write comma separated value files.
datetime Date and time value manipulation.
dbm Unix Key-Value Databases
decimal Fixed and floating point math
difflib Compare sequences, especially lines of text.
dis Python Bytecode Disassembler
doctest Write automated tests as part of the documentation for a module.
ensurepip Install the Python Package Installer, pip
enum Defines enumeration type
filecmp Compare files and directories on the file system.
fileinput Process lines from input streams.
fnmatch Compare filenames with Unix-style glob patterns.
fractions Implements a class for working with rational numbers.
functools Tools for working with functions.
gc Garbage Collector
getopt Command line option parsing
getpass Prompt for a password securely
gettext Message Catalogs
glob Use UNIX shell rules to find filenames matching a pattern.
grp UNIX Group Database
gzip Read and write gzip files
hashlib Cryptographic hashes and message digests
heapq In-place heap sort algorithm
hmac Cryptographic signature and verification of messages.
    http.cookies Server-side HTTP cookie tools
    http.server Base classes for implementing web servers.
imaplib IMAP4 client library
importlib Interface to module import mechanism.
inspect Inspect live objects
io Implements file I/O and provides classes for working with buffers using file-like API.
ipaddress Classes for working with Internet Protocol (IP) addresses.
itertools Iterator functions for efficient looping
json JavaScript Object Notation Serializer
linecache Read text files efficiently
locale POSIX cultural localization API
logging Report status, error, and informational messages.
mailbox Access and manipulate email archives.
math Mathematical functions
mmap Memory-map files
multiprocessing Manage processes like threads.
operator Functional interface to built-in operators
os Portable access to operating system specific features.
    os.path Platform-independent manipulation of filenames.
pathlib Treat filesystem paths as objects.
pdb Interactive Debugger
pickle Object serialization
pkgutil Package utilities
platform System version information
pprint Pretty-print data structures
profile Performance analysis of Python programs.
pstats Manipulate and analyze profile statistics.
pwd UNIX Password Database
pyclbr Class browser
pydoc Online help for modules
queue Thread-safe FIFO implementation
random Pseudorandom number generators
re Searching within and changing text using formal patterns.
readline The GNU readline library
resource System resource management
sched Generic event scheduler.
select Wait for I/O Efficiently
selectors I/O Multiplexing Abstractions
shelve Persistent storage of objects
shlex Lexical analysis of shell-style syntaxes.
shutil High-level file operations.
signal Asynchronous system events
site Site-wide configuration
sitecustomize Site-specific configuration
smtpd Includes classes for implementing SMTP servers.
smtplib Simple mail transfer protocol client.
socket Network communication
socketserver Creating network servers.
sqlite3 Embedded relational database
statistics Statistical Calculations
string Contains constants and classes for working with text.
struct Convert between strings and binary data.
subprocess Spawning additional processes
sys System-specific configuration
sysconfig Interpreter Compile-time Configuration
tabnanny Scan Python source code looking for suspicious indentation.
tarfile Tar archive access
tempfile Temporary file system objects
textwrap Formatting text paragraphs
threading Manage concurrent operations
time Clock time
timeit Time the execution of small bits of Python code.
trace Follow Program Flow
traceback Exceptions and stack traces
unittest Automated testing framework
    urllib.parse Split URL into components
    urllib.request Network Resource Access
    urllib.robotparser Internet spider access control
usercustomize User-specific configuration
uuid Universally unique identifiers
venv Create isolated installation and execution contexts.
warnings Non-fatal alerts
weakref Impermanent references to objects
webbrowser Displays web pages
    xml.etree.ElementTree XML Manipulation API
    xmlrpc.client Client library for XML-RPC
    xmlrpc.server Implements an XML-RPC server.
zipfile ZIP archive access
zipimport Load Python code from ZIP archives.
zlib GNU zlib compression library