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Merge pull request #601 from balloob/package-install-global

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Check global installed packages
This commit is contained in:
Paulus Schoutsen 2015-11-09 12:45:51 -08:00
commit 3ec2555c66
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
def check_package_exists(package, target):
"""Check if a package exists.
def check_package_exists(package, lib_dir):
"""Check if a package is installed globally or in lib_dir.
Returns True when the requirement is met.
Returns False when the package is not installed or doesn't meet req."""
try:
@ -42,5 +42,11 @@ def check_package_exists(package, target):
# This is a zip file
req = pkg_resources.Requirement.parse(urlparse(package).fragment)
return any(dist in req for dist in
pkg_resources.find_distributions(target))
# Check packages from lib dir
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)