don't expect there to be a requirements.txt

Signed-off-by: Kenneth Reitz <me@kennethreitz.org>

bin/steps/pipenv

@@ -62,9 +62,6 @@ if [ ! "$SKIP_PIPENV_INSTALL" ]; then
                 puts-step "Installing test dependencies…"
                 /app/.heroku/python/bin/pipenv install --dev --system --deploy 2>&1 | cleanup | indent
             fi
-
-            # Pip freeze, for compatibility.
-            pip freeze > requirements.txt
         fi
     fi
 else

vendor/pip-pop/pip-grep

@@ -70,4 +70,8 @@ def main():
 
 
 if __name__ == '__main__':
-    main()
+    try:
+        main()
+    except Exception:
+        pass
+