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Check global installed packages

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This commit is contained in:
Paulus Schoutsen 2015-11-08 22:55:22 -08:00
parent fda65a4934
commit 4fb301b7a9
1 changed files with 10 additions and 4 deletions
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14
homeassistant/util/package.py
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@ -32,8 +32,8 @@ def install_package(package, upgrade=True, target=None):
return False return False
def check_package_exists(package, target): def check_package_exists(package, lib_dir):
"""Check if a package exists. """Check if a package is installed globally or in lib_dir.
Returns True when the requirement is met. Returns True when the requirement is met.
Returns False when the package is not installed or doesn't meet req.""" Returns False when the package is not installed or doesn't meet req."""
try: try:
@ -42,5 +42,11 @@ def check_package_exists(package, target):
# This is a zip file # This is a zip file
req = pkg_resources.Requirement.parse(urlparse(package).fragment) req = pkg_resources.Requirement.parse(urlparse(package).fragment)
return any(dist in req for dist in # Check packages from lib dir
pkg_resources.find_distributions(target)) if lib_dir is not None:
if any(dist in req for dist in
pkg_resources.find_distributions(lib_dir)):
return True
# Check packages from global + virtual environment
return any(dist in req for dist in pkg_resources.working_set)