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94 | 94 |
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95 | 95 | >The requirements file format allows for specifying dependency versions using logical operators (for example chardet>=3.0.4) or specifying dependencies without any versions. In this case the pip install -r requirements.txt command will always try to install the latest available package version. To be sure that the cache will be used, please stick to a specific dependency version and update it manually if necessary. |
96 | 96 |
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| 97 | +>The `setup-python` action does not handle authentication for pip when installing packages from private repositories. For help, refer [pip’s VCS support documentation](https://pip.pypa.io/en/stable/topics/vcs-support/) or visit the [pip repository](https://github.com/pypa/pip). |
| 98 | + |
97 | 99 | See examples of using `cache` and `cache-dependency-path` for `pipenv` and `poetry` in the section:[Caching packages](docs/advanced-usage.md#caching-packages) of the [Advanced usage](docs/advanced-usage.md) guide. |
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99 | 101 | ## Advanced usage |
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