don't fail

CHANGELOG.md

 # Python Buildpack Changelog
 
+## v93
+
+Improved support for PyPy.
+
 ## v92
 
 Improved cache functionality and fix egg-links regression. 

bin/steps/pip-install

 # Install dependencies with Pip.
 puts-cmd "pip install -r requirements.txt"
 
+set +e
 # rewrite any existing egg links to point to the build dir so pip does not fail with a mismatch error
 find .heroku/python/lib/python*/site-packages/ -name "*.egg-link" -print0 | xargs -r -0 -n 1 sed -i -e "s#/app/#$(pwd)/#"
 find .heroku/python/lib/python*/site-packages/ -name "*.pth" -print0 | xargs -r -0 -n 1 sed -i -e "s#/app/#/$(pwd)/#"
+set -e
 
+set +e
 # Support for PyPy
 find .heroku/python/lib-python/*/site-packages/ -name "*.egg-link" -print0 | xargs -r -0 -n 1 sed -i -e "s#/app/#$(pwd)/#"
 find .heroku/python/lib-python/*/site-packages/ -name "*.pth" -print0 | xargs -r -0 -n 1 sed -i -e "s#/app/#/$(pwd)/#"
+set -e
 
 [ ! "$FRESH_PYTHON" ] && bpwatch start pip_install
 [ "$FRESH_PYTHON" ] && bpwatch start pip_install_first
@@ -31,13 +35,16 @@ cp requirements.txt .heroku/python/requirements-declared.txt
 [ ! "$FRESH_PYTHON" ] && bpwatch stop pip_install
 [ "$FRESH_PYTHON" ] && bpwatch stop pip_install_first
 
+set +e
 # rewrite build dir in egg links to /app so things are found at runtime
 find .heroku/python/lib/python*/site-packages/ -name "*.egg-link" -print0 | xargs -r -0 -n 1 sed -i -e "s#$(pwd)/#/app/#"
 find .heroku/python/lib/python*/site-packages/ -name "*.pth" -print0 | xargs -r -0 -n 1 sed -i -e "s#$(pwd)/#/app/#"
+set -e
 
+set +e
 # Support for PyPy
 find .heroku/python/lib-python/*/site-packages/  -name "*.egg-link" -print0 | xargs -r -0 -n 1 sed -i -e "s#$(pwd)/#/app/#"
 find .heroku/python/lib-python/*/site-packages/  -name "*.pth" -print0 | xargs -r -0 -n 1 sed -i -e "s#$(pwd)/#/app/#"
-
+set -e
 
 echo