53 lines
1.8 KiB
Markdown
53 lines
1.8 KiB
Markdown
# Python
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## Package Caching Proxy
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Instead of accessing pypi.org directly PSI provides a caching proxy for pypi packages. There are several advantages in using this instead of directly accessing pypi.org:
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1. Speed - the caching proxy might/will improve the dependency resolution and download speed for installing packages
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2. Once downloaded/installed packages will still be available even if they are not accessible on the internet again.
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3. Accessibility - pypi.psi.ch is accessible from all PSI networks (including the onces without internet access)
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### Usage
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The url to use the CachingProxy is: https://pypi.psi.ch/simple:
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You can manually specify the url while using the `pip` command as follows:
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pip install --index-url=https://pypi.psi.ch/simple pandas
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To fix the default url for your user to the proxy you can create the following config file within your users home directory:
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```bash
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% cat ~/.config/pip/pip.conf
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[global]
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timeout = 60
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index-url = https://pypi.psi.ch/simple
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```
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To change the default for the whole system edit: `/etc/pip.conf`
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(also see: https://pip.pypa.io/en/stable/topics/configuration/#location)
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To check whether your pip client is using this address you can simply issue a:
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```
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pip install -h
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```
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Check whats written in the descripiton of the option --index-url:
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```
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% pip install -h | grep -A5 index-url
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-i, --index-url <url> Base URL of the Python Package Index (default
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https://pypi.psi.ch/simple). This should point
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to a repository compliant with PEP 503 (the
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simple repository API) or a local directory laid
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out in the same format.
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...
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```
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or do a `pip config list`
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```
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% pip config list
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global.index-url='https://pypi.psi.ch/simple'
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global.timeout='60'
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``` |