Python 3 Module of the Week¶

PyMOTW-3 is a series of articles written by Doug Hellmann to demonstrate how to use the modules of the Python 3 standard library. It is based on the original PyMOTW series, which covered Python 2.7. See About Python Module of the Week for details including the version of Python and tools used.

Text
- string — Text Constants and Templates
- textwrap — Formatting Text Paragraphs
- re — Regular Expressions
- difflib — Compare Sequences
Data Structures
- enum – Enumeration Type
- collections — Container Data Types
- array — Sequence of Fixed-type Data
- heapq – Heap Sort Algorithm
- bisect — Maintain Lists in Sorted Order
- queue — Thread-Safe FIFO Implementation
- struct — Binary Data Structures
- weakref — Impermanent References to Objects
- copy — Duplicate Objects
- pprint — Pretty-Print Data Structures
Algorithms
- functools — Tools for Manipulating Functions
- itertools — Iterator Functions
- operator — Functional Interface to Built-in Operators
- contextlib — Context Manager Utilities
Dates and Times
- time — Clock Time
- datetime — Date and Time Value Manipulation
- calendar — Work with Dates
Mathematics
- decimal — Fixed and Floating Point Math
- fractions — Rational Numbers
- random — Pseudorandom Number Generators
- math — Mathematical Functions
- statistics — Statistical Calculations
The File System
- os.path — Platform-independent Manipulation of Filenames
- pathlib — Filesystem Paths as Objects
- glob — Filename Pattern Matching
- fnmatch — Unix-style Glob Pattern Matching
- linecache — Read Text Files Efficiently
- tempfile — Temporary File System Objects
- shutil — High-level File Operations
- filecmp — Compare Files
- mmap — Memory-map Files
- codecs — String Encoding and Decoding
- io — Text, Binary, and Raw Stream I/O Tools
Data Persistence and Exchange
- pickle — Object Serialization
- shelve — Persistent Storage of Objects
- dbm — Unix Key-Value Databases
- sqlite3 — Embedded Relational Database
- xml.etree.ElementTree — XML Manipulation API
- csv — Comma-separated Value Files
Data Compression and Archiving
- zlib — GNU zlib Compression
- gzip — Read and Write GNU zip Files
- bz2 — bzip2 Compression
- tarfile — Tar Archive Access
- zipfile — ZIP Archive Access
Cryptography
- hashlib — Cryptographic Hashing
- hmac — Cryptographic Message Signing and Verification
Concurrency with Processes, Threads, and Coroutines
- subprocess — Spawning Additional Processes
- signal — Asynchronous System Events
- threading — Manage Concurrent Operations Within a Process
- multiprocessing — Manage Processes Like Threads
- asyncio — Asynchronous I/O, event loop, and concurrency tools
- concurrent.futures — Manage Pools of Concurrent Tasks
Networking
- ipaddress — Internet Addresses
- socket — Network Communication
- selectors — I/O Multiplexing Abstractions
- select — Wait for I/O Efficiently
- socketserver — Creating Network Servers
The Internet
- urllib.parse — Split URLs into Components
- urllib.request — Network Resource Access
- urllib.robotparser — Internet Spider Access Control
- base64 — Encode Binary Data with ASCII
- http.server — Base Classes for Implementing Web Servers
- http.cookies — HTTP Cookies
- webbrowser — Displays web pages
- uuid — Universally Unique Identifiers
- json — JavaScript Object Notation
- xmlrpc.client — Client Library for XML-RPC
- xmlrpc.server — An XML-RPC server
Email
- smtplib — Simple Mail Transfer Protocol Client
- smtpd — Sample Mail Servers
- mailbox — Manipulate Email Archives
- imaplib — IMAP4 Client Library
Application Building Blocks
- argparse — Command-Line Option and Argument Parsing
- getopt — Command Line Option Parsing
- readline — The GNU readline Library
- getpass — Secure Password Prompt
- cmd — Line-oriented Command Processors
- shlex — Parse Shell-style Syntaxes
- configparser — Work with Configuration Files
- logging — Report Status, Error, and Informational Messages
- fileinput — Command-Line Filter Framework
- atexit — Program Shutdown Callbacks
- sched — Timed Event Scheduler
Internationalization and Localization
- gettext — Message Catalogs
- locale — Cultural Localization API
Developer Tools
- pydoc — Online Help for Modules
- doctest — Testing Through Documentation
- unittest — Automated Testing Framework
- trace — Follow Program Flow
- traceback — Exceptions and Stack Traces
- cgitb — Detailed Traceback Reports
- pdb — Interactive Debugger
- profile and pstats — Performance Analysis
- timeit — Time the execution of small bits of Python code.
- tabnanny — Indentation validator
- compileall — Byte-compile Source Files
- pyclbr — Class Browser
- venv — Create Virtual Environments
- ensurepip — Install the Python Package Installer
Runtime Features
- site — Site-wide Configuration
- sys — System-specific Configuration
- os — Portable access to operating system specific features
- platform — System Version Information
- resource — System Resource Management
- gc — Garbage Collector
- sysconfig — Interpreter Compile-time Configuration
Language Tools
- warnings — Non-fatal Alerts
- abc — Abstract Base Classes
- dis — Python Bytecode Disassembler
- inspect — Inspect Live Objects
Modules and Packages
- importlib — Python’s Import Mechanism
- pkgutil — Package Utilities
- zipimport — Load Python Code from ZIP Archives
Unix-specific Services
- pwd — Unix Password Database
- grp — Unix Group Database
Porting Notes
- References
- New Modules
- Renamed Modules
- Removed Modules
- Deprecated Modules
- Summary of Changes to Modules
Outside of the Standard Library
- Text
- Algorithms
- Dates and Times
- Mathematics
- Data Persistence and Exchange
- Cryptography
- Concurrency with Processes, Threads, and Coroutines
- The Internet
- Email
- Application Building Blocks
- Developer Tools
About Python Module of the Week
- Subscribe
- Tools
- Translations and Other Versions

Python 3 Module of the Week¶

自怼圈/年番新