查看“Python包”的源代码

有超过 200,000 个 Python 程序包（基于官方 Python 程序包索引 PyPI 托管的程序包）。

=== 科学计算 ===
{| class="wikitable"
|Package
|Install
|Import
|Memo
|-
|Table
|pandas
|pandas
|处理复杂的数据集
|-
|Matrix
|numpy
|numpy
|维度数组与矩阵运算
|-
|Scientific 
|scipy
|scipy
|插值、积分、优化、图像处理、统计、常微分方程
|-
|Sklearn
|scikit-learn
|sklearn
|分类、回归、聚类、降维等算法机器学习库
|}

=== DB ===
{| class="wikitable"
|Package
|Install
|Import
|Memo
|-
|Oracle
|oracledb
|
|支持 DSN 参数
|-
|Oracle
|cx_Oracle
|
|
|-
|postgreSQL
|psycopg2-binary
|psycopg2
|
|-
|MySQL
|pymysql
|
|
|-
|Clickhouse
|clickhouse_driver
|
|
|-
|SQL Server
|pymssql
|
|
|-
|SQLite3
|
|sqlite3
|
|-
|redis
|redis-py-cluster
|rediscluster
|
|}

=== HTTP ===
{| class="wikitable"
|Package
|Install
|Import
|Memo
|-
|HTTP
|urllib3
|urllib3
|HTTP 客户端，SSL/TLS 验证等
|-
|HTTP
|requests
|requests
|发送HTTP请求
|}

=== Build ===
using setup.py if you have downloaded the source package locally:
 python setup.py build
 python setup.py install

=== 支持的安装包版本 ===
 wheel.pep425tags.get_supported()

=== Error ===
=== nltk.download ===
 [nltk_data] Error loading stopwords: <urlopen error [SSL:
 [nltk_data]     CERTIFICATE_VERIFY_FAILED] certificate verify failed:
 [nltk_data]     unable to get local issuer certificate (_ssl.c:1006)>

 # 忽略证书验证
 # 建立 SSL 连接时，使用未经验证的上下文，从而避免 SSL 证书验证失败的错误
 import ssl
 ssl._create_default_https_context = ssl._create_unverified_context
 
 -.OR.-
 
 # 下载 Python 根证书
 curl --remote-name --time-cond cacert.pem https://curl.se/ca/cacert.pem
 替换这个目录的证书：
 import ssl
 ssl.get_default_verify_paths().openssl_cafile

[[分类:Develop]]
[[分类:Python]]