Fix deploy error due to new pip / old setuptools conflict #11
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Newer versions of pip (>=19.0) don't work with older versions of setuptools (<40) due to an attribute error. If `include_system_packages` is `false` (now the default), this is not an issue because of the newer setuptools that gets installed into the venv. However, when it's `true`, which is required for some charms, the install fails because pip somehow prefers the older system-installed setuptools over the newer one in the venv. Pinning pip avoids the problem until we can find a better solution. See: * https://discourse.jujucharms.com/t/wheel-building-fails-during-charm-deployment/1947 * pypa/pip#6164
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Tested with both trusty and bionic with |
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Completely the wrong PR. |
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Newer versions of pip (>=19.0) don't work with older versions of setuptools (<40) due to an attribute error. If
include_system_packagesisfalse(now the default), this is not an issue because of the newer setuptools that gets installed into the venv. However, when it'strue, which is required for some charms, the install fails because pip somehow prefers the older system-installed setuptools over the newer one in the venv. Pinning pip avoids the problem until we can find a better solution.See: