diff options
| -rw-r--r-- | setup.py | 21 |
1 files changed, 12 insertions, 9 deletions
@@ -218,15 +218,18 @@ SETUP_REQUIRES = INSTALL_REQUIRES + ( 'six>=1.10', ) if ENABLE_DOCUMENTATION_BUILD else () -if BUILD_WITH_CYTHON: - sys.stderr.write( - "You requested a Cython build via GRPC_PYTHON_BUILD_WITH_CYTHON, " - "but do not have Cython installed. We won't stop you from using " - "other commands, but the extension files will fail to build.\n") -elif need_cython: - sys.stderr.write( - 'We could not find Cython. Setup may take 10-20 minutes.\n') - SETUP_REQUIRES += ('cython>=0.23',) +try: + import Cython +except ImportError: + if BUILD_WITH_CYTHON: + sys.stderr.write( + "You requested a Cython build via GRPC_PYTHON_BUILD_WITH_CYTHON, " + "but do not have Cython installed. We won't stop you from using " + "other commands, but the extension files will fail to build.\n") + elif need_cython: + sys.stderr.write( + 'We could not find Cython. Setup may take 10-20 minutes.\n') + SETUP_REQUIRES += ('cython>=0.23',) COMMAND_CLASS = { 'doc': commands.SphinxDocumentation, |