python-pillow/Pillow
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raise custom exceptions when required/requested items are not found

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This commit is contained in:
wiredfool 2016-10-19 19:07:08 +01:00
parent 76d156bef0
commit 015e8cc266
1 changed files with 61 additions and 41 deletions
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36
setup.py
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@ -40,6 +40,8 @@ _LIB_IMAGING = (
DEBUG = False DEBUG = False
class DependencyException(Exception): pass
class DefaultDependencyException(Exception): pass
def _dbg(s, tp=None): def _dbg(s, tp=None):
if DEBUG: if DEBUG:
@ -558,12 +560,8 @@ class pil_build_ext(build_ext):
for f in feature: for f in feature:
if not getattr(feature, f) and feature.require(f): if not getattr(feature, f) and feature.require(f):
if f in ('jpeg', 'zlib'): if f in ('jpeg', 'zlib'):
raise ValueError( raise DefaultDependencyException(f)
'%s is required unless explicitly disabled' raise DependencyException(f)
' using --disable-%s, aborting' % (f, f))
raise ValueError(
'--enable-%s requested but %s not found, aborting.' %
(f, f))
# #
# core library # core library
@ -758,14 +756,14 @@ class pil_build_ext(build_ext):
def debug_build(): def debug_build():
return hasattr(sys, 'gettotalrefcount') return hasattr(sys, 'gettotalrefcount')
try:
setup(name=NAME, setup(name=NAME,
version=PILLOW_VERSION, version=PILLOW_VERSION,
description='Python Imaging Library (Fork)', description='Python Imaging Library (Fork)',
long_description=_read('README.rst').decode('utf-8'), long_description=_read('README.rst').decode('utf-8'),
author='Alex Clark (Fork Author)', author='Alex Clark (Fork Author)',
author_email='aclark@aclark.net', author_email='aclark@aclark.net',
url='https://python-pillow.org', url='http://python-pillow.org',
classifiers=[ classifiers=[
"Development Status :: 6 - Mature", "Development Status :: 6 - Mature",
"Topic :: Multimedia :: Graphics", "Topic :: Multimedia :: Graphics",
@ -793,3 +791,25 @@ setup(name=NAME,
keywords=["Imaging", ], keywords=["Imaging", ],
license='Standard PIL License', license='Standard PIL License',
zip_safe=not debug_build(), ) zip_safe=not debug_build(), )
except DefaultDependencyException as err:
msg = """
The headers or library files could not be found for %s,
a required dependency when compiling Pillow from source.
Please see the install instructions at:
http://pillow.readthedocs.io/en/latest/installation.html
""" % (str(err))
sys.stderr.write(msg)
raise DefaultDependencyException(msg)
except DependencyException as err:
msg = """
The headers or library files could not be found for %s,
which was requested by the option flag --enable-%s
""" % (str(err), str(err))
sys.stderr.write(msg)
raise DependencyException(msg)