Speed Up Python Package Installation: A Guide to Using pip Mirrors
When installing Python packages with pip, the default source is the Python Package Index (PyPI). But sometimes, due to network restrictions, slow speeds, or access issues, it's better to use a mirror — a replica of PyPI hosted by another provider.
This guide will show you how to use pip mirrors both temporarily and permanently.
Why Use a pip Mirror?
- Speed up installation by using a nearby mirror
- Provide redundancy in case PyPI is down
- Improve reliability behind firewalls or in restricted regions
Use a Mirror Temporarily (One-Time)
You can specify a mirror directly in the `pip install` command:
- pip install -i https://<mirror_url>/simple <package_name>
Example (Tsinghua Mirror)
- pip install -i https://pypi.tuna.tsinghua.edu.cn/simple requests
If you run into SSL issues, add --trusted-host:
- pip install -i https://pypi.tuna.tsinghua.edu.cn/simple --trusted-host pypi.tuna.tsinghua.edu.cn requests
Use a Mirror with Requirements File
- pip install -i https://pypi.tuna.tsinghua.edu.cn/simple -r requirements.txt
Trusted Public pip Mirrors
| Mirror URL | |
Tsinghua University | ||
USTC (China) | ||
Aliyun (Alibaba Cloud) | ||
Douban | ||
| PyPI (default) |
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