Last Updated on November 18, 2025 by Admin
| Index | Modules | Description |
|---|---|---|
| 1 | __future__ | Future statement definitions |
| 2 | __main__ | The environment where top-level code is run. Covers command-line interfaces, import-time behavior, and “__name__ == ‘__main__’“. |
| 3 | _thread | Low-level threading API. |
| 4 | _tkinter | A binary module that contains the low-level interface to Tcl/Tk. |
| 5 | abc | Abstract base classes according to :pep:`3119`. |
| 6 | aifc | Deprecated: Removed in 3.13. |
| 7 | annotationlib | Functionality for introspecting annotations |
| 8 | argparse | Command-line option and argument parsing library. |
| 9 | array | Space efficient arrays of uniformly typed numeric values. |
| 10 | ast | Abstract Syntax Tree classes and manipulation. |
| 11 | asynchat | Deprecated: Removed in 3.12. |
| 12 | asyncio | Asynchronous I/O. |
| 13 | asyncore | Deprecated: Removed in 3.12. |
| 14 | atexit | Register and execute cleanup functions. |
| 15 | audioop | Deprecated: Removed in 3.13. |
| 16 | base64 | RFC 4648: Base16, Base32, Base64 Data Encodings; Base85 and Ascii85 |
| 17 | bdb | Debugger framework. |
| 18 | binascii | Tools for converting between binary and various ASCII-encoded binary representations. |
| 19 | bisect | Array bisection algorithms for binary searching. |
| 20 | builtins | The module that provides the built-in namespace. |
| 21 | bz2 | Interfaces for bzip2 compression and decompression. |
| 22 | calendar | Functions for working with calendars, including some emulation of the Unix cal program. |
| 23 | cgi | Deprecated: Removed in 3.13. |
| 24 | cgitb | Deprecated: Removed in 3.13. |
| 25 | chunk | Deprecated: Removed in 3.13. |
| 26 | cmath | Mathematical functions for complex numbers. |
| 27 | cmd | Build line-oriented command interpreters. |
| 28 | code | Facilities to implement read-eval-print loops. |
| 29 | codecs | Encode and decode data and streams. |
| 30 | codeop | Compile (possibly incomplete) Python code. |
| 31 | collections | Container datatypes |
| 32 | colorsys | Conversion functions between RGB and other color systems. |
| 33 | compileall | Tools for byte-compiling all Python source files in a directory tree. |
| 34 | compression | |
| 35 | concurrent | |
| 36 | configparser | Configuration file parser. |
| 37 | contextlib | Utilities for with-statement contexts. |
| 38 | contextvars | Context Variables |
| 39 | copy | Shallow and deep copy operations. |
| 40 | copyreg | Register pickle support functions. |
| 41 | cProfile | |
| 42 | crypt | Deprecated: Removed in 3.13. |
| 43 | csv | Write and read tabular data to and from delimited files. |
| 44 | ctypes | A foreign function library for Python. |
| 45 | curses (Unix) | An interface to the curses library, providing portable terminal handling. |
| 46 | dataclasses | Generate special methods on user-defined classes. |
| 47 | datetime | Basic date and time types. |
| 48 | dbm | Interfaces to various Unix “database” formats. |
| 49 | decimal | Implementation of the General Decimal Arithmetic Specification. |
| 50 | difflib | Helpers for computing differences between objects. |
| 51 | dis | Disassembler for Python bytecode. |
| 52 | distutils | Deprecated: Removed in 3.12. |
| 53 | doctest | Test pieces of code within docstrings. |
| 54 | Package supporting the parsing, manipulating, and generating email messages. | |
| 55 | encodings | Encodings package |
| 56 | ensurepip | Bootstrapping the “pip” installer into an existing Python installation or virtual environment. |
| 57 | enum | Implementation of an enumeration class. |
| 58 | errno | Standard errno system symbols. |
| 59 | faulthandler | Dump the Python traceback. |
| 60 | fcntl (Unix) | The fcntl() and ioctl() system calls. |
| 61 | filecmp | Compare files efficiently. |
| 62 | fileinput | Loop over standard input or a list of files. |
| 63 | fnmatch | Unix shell style filename pattern matching. |
| 64 | fractions | Rational numbers. |
| 65 | ftplib | FTP protocol client (requires sockets). |
| 66 | functools | Higher-order functions and operations on callable objects. |
| 67 | gc | Interface to the cycle-detecting garbage collector. |
| 68 | getopt | Portable parser for command line options; support both short and long option names. |
| 69 | getpass | Portable reading of passwords and retrieval of the userid. |
| 70 | gettext | Multilingual internationalization services. |
| 71 | glob | Unix shell style pathname pattern expansion. |
| 72 | graphlib | Functionality to operate with graph-like structures |
| 73 | grp (Unix) | The group database (getgrnam() and friends). |
| 74 | gzip | Interfaces for gzip compression and decompression using file objects. |
| 75 | hashlib | Secure hash and message digest algorithms. |
| 76 | heapq | Heap queue algorithm (a.k.a. priority queue). |
| 77 | hmac | Keyed-Hashing for Message Authentication (HMAC) implementation |
| 78 | html | Helpers for manipulating HTML. |
| 79 | http | HTTP status codes and messages |
| 80 | idlelib | Implementation package for the IDLE shell/editor. |
| 81 | imaplib | IMAP4 protocol client (requires sockets). |
| 82 | imghdr | Deprecated: Removed in 3.13. |
| 83 | imp | Deprecated: Removed in 3.12. |
| 84 | importlib | The implementation of the import machinery. |
| 85 | inspect | Extract information and source code from live objects. |
| 86 | io | Core tools for working with streams. |
| 87 | ipaddress | IPv4/IPv6 manipulation library. |
| 88 | itertools | Functions creating iterators for efficient looping. |
| 89 | json | Encode and decode the JSON format. |
| 90 | keyword | Test whether a string is a keyword in Python. |
| 91 | linecache | Provides random access to individual lines from text files. |
| 92 | locale | Internationalization services. |
| 93 | logging | Flexible event logging system for applications. |
| 94 | lzma | A Python wrapper for the liblzma compression library. |
| 95 | mailbox | Manipulate mailboxes in various formats |
| 96 | mailcap | Deprecated: Removed in 3.13. |
| 97 | marshal | Convert Python objects to streams of bytes and back (with different constraints). |
| 98 | math | Mathematical functions (sin() etc.). |
| 99 | mimetypes | Mapping of filename extensions to MIME types. |
| 100 | mmap | Interface to memory-mapped files for Unix and Windows. |
| 101 | modulefinder | Find modules used by a script. |
| 102 | msilib | Deprecated: Removed in 3.13. |
| 103 | msvcrt (Windows) | Miscellaneous useful routines from the MS VC++ runtime. |
| 104 | multiprocessing | Process-based parallelism. |
| 105 | netrc | Loading of .netrc files. |
| 106 | nis | Deprecated: Removed in 3.13. |
| 107 | nntplib | Deprecated: Removed in 3.13. |
| 108 | numbers | Numeric abstract base classes (Complex, Real, Integral, etc.). |
| 109 | operator | Functions corresponding to the standard operators. |
| 110 | optparse | Command-line option parsing library. |
| 111 | os | Miscellaneous operating system interfaces. |
| 112 | ossaudiodev | Deprecated: Removed in 3.13. |
| 113 | pathlib | Object-oriented filesystem paths |
| 114 | pdb | The Python debugger for interactive interpreters. |
| 115 | pickle | Convert Python objects to streams of bytes and back. |
| 116 | pickletools | Contains extensive comments about the pickle protocols and pickle-machine opcodes, as well as some useful functions. |
| 117 | pipes | Deprecated: Removed in 3.13. |
| 118 | pkgutil | Utilities for the import system. |
| 119 | platform | Retrieves as much platform identifying data as possible. |
| 120 | plistlib | Generate and parse Apple plist files. |
| 121 | poplib | POP3 protocol client (requires sockets). |
| 122 | posix (Unix) | The most common POSIX system calls (normally used via module os). |
| 123 | pprint | Data pretty printer. |
| 124 | profile | Python source profiler. |
| 125 | pstats | Statistics object for use with the profiler. |
| 126 | pty (Unix) | Pseudo-Terminal Handling for Unix. |
| 127 | pwd (Unix) | The password database (getpwnam() and friends). |
| 128 | py_compile | Generate byte-code files from Python source files. |
| 129 | pyclbr | Supports information extraction for a Python module browser. |
| 130 | pydoc | Documentation generator and online help system. |
| 131 | queue | A synchronized queue class. |
| 132 | quopri | Encode and decode files using the MIME quoted-printable encoding. |
| 133 | random | Generate pseudo-random numbers with various common distributions. |
| 134 | re | Regular expression operations. |
| 135 | readline (Unix) | GNU readline support for Python. |
| 136 | reprlib | Alternate repr() implementation with size limits. |
| 137 | resource (Unix) | An interface to provide resource usage information on the current process. |
| 138 | rlcompleter | Python identifier completion, suitable for the GNU readline library. |
| 139 | runpy | Locate and run Python modules without importing them first. |
| 140 | sched | General purpose event scheduler. |
| 141 | secrets | Generate secure random numbers for managing secrets. |
| 142 | select | Wait for I/O completion on multiple streams. |
| 143 | selectors | High-level I/O multiplexing. |
| 144 | shelve | Python object persistence. |
| 145 | shlex | Simple lexical analysis for Unix shell-like languages. |
| 146 | shutil | High-level file operations, including copying. |
| 147 | signal | Set handlers for asynchronous events. |
| 148 | site | Module responsible for site-specific configuration. |
| 149 | sitecustomize | |
| 150 | smtpd | Deprecated: Removed in 3.12. |
| 151 | smtplib | SMTP protocol client (requires sockets). |
| 152 | sndhdr | Deprecated: Removed in 3.13. |
| 153 | socket | Low-level networking interface. |
| 154 | socketserver | A framework for network servers. |
| 155 | spwd | Deprecated: Removed in 3.13. |
| 156 | sqlite3 | A DB-API 2.0 implementation using SQLite 3.x. |
| 157 | ssl | TLS/SSL wrapper for socket objects |
| 158 | stat | Utilities for interpreting the results of os.stat(), os.lstat() and os.fstat(). |
| 159 | statistics | Mathematical statistics functions |
| 160 | string | Common string operations. |
| 161 | stringprep | String preparation, as per RFC 3453 |
| 162 | struct | Interpret bytes as packed binary data. |
| 163 | subprocess | Subprocess management. |
| 164 | sunau | Deprecated: Removed in 3.13. |
| 165 | symtable | Interface to the compiler’s internal symbol tables. |
| 166 | sys | Access system-specific parameters and functions. |
| 167 | sysconfig | Python’s configuration information |
| 168 | syslog (Unix) | An interface to the Unix syslog library routines. |
| 169 | tabnanny | Tool for detecting white space related problems in Python source files in a directory tree. |
| 170 | tarfile | Read and write tar-format archive files. |
| 171 | telnetlib | Deprecated: Removed in 3.13. |
| 172 | tempfile | Generate temporary files and directories. |
| 173 | termios (Unix) | POSIX style tty control. |
| 174 | test | Regression tests package containing the testing suite for Python. |
| 175 | textwrap | Text wrapping and filling |
| 176 | threading | Thread-based parallelism. |
| 177 | time | Time access and conversions. |
| 178 | timeit | Measure the execution time of small code snippets. |
| 179 | tkinter | Interface to Tcl/Tk for graphical user interfaces |
| 180 | token | Constants representing terminal nodes of the parse tree. |
| 181 | tokenize | Lexical scanner for Python source code. |
| 182 | tomllib | Parse TOML files. |
| 183 | trace | Trace or track Python statement execution. |
| 184 | traceback | Print or retrieve a stack traceback. |
| 185 | tracemalloc | Trace memory allocations. |
| 186 | tty (Unix) | Utility functions that perform common terminal control operations. |
| 187 | turtle | An educational framework for simple graphics applications |
| 188 | turtledemo | A viewer for example turtle scripts |
| 189 | types | Names for built-in types. |
| 190 | typing | Support for type hints (see :pep:`484`). |
| 191 | unicodedata | Access the Unicode Database. |
| 192 | unittest | Unit testing framework for Python. |
| 193 | urllib | |
| 194 | urllib.error | Exception classes raised by urllib.request. |
| 195 | urllib.parse | Parse URLs into or assemble them from components. |
| 196 | urllib.request | Extensible library for opening URLs. |
| 197 | urllib.response | Response classes used by urllib. |
| 198 | urllib.robotparser | Load a robots.txt file and answer questions about fetchability of other URLs. |
| 199 | usercustomize | |
| 200 | uu | Deprecated: Removed in 3.13. |
| 201 | uuid | UUID objects (universally unique identifiers) according to RFC 9562 |
| 202 | venv | Creation of virtual environments. |
| 203 | warnings | Issue warning messages and control their disposition. |
| 204 | wave | Provide an interface to the WAV sound format. |
| 205 | weakref | Support for weak references and weak dictionaries. |
| 206 | webbrowser | Easy-to-use controller for web browsers. |
| 207 | winreg (Windows) | Routines and objects for manipulating the Windows registry. |
| 208 | winsound (Windows) | Access to the sound-playing machinery for Windows. |
| 209 | wsgiref | WSGI Utilities and Reference Implementation. |
| 210 | xdrlib | Deprecated: Removed in 3.13. |
| 211 | xml | Package containing XML processing modules |
| 212 | xmlrpc | Server and client modules implementing XML-RPC. |
| 213 | zipapp | Manage executable Python zip archives |
| 214 | zipfile | Read and write ZIP-format archive files. |
| 215 | zipimport | Support for importing Python modules from ZIP archives. |
| 216 | zlib | Low-level interface to compression and decompression routines compatible with gzip. |
| 217 | zoneinfo | IANA time zone support |