fix broken version specification
@@ -17,11 +17,11 @@ RUN python2.7 -m pip install --upgrade pip setuptools
RUN python3.5 -m pip install \
'cython>=0.28.0' 'pytest==4.1.1' 'pytest-xdist==1.26.1' \
- mock setuptools filelock numpy>=1.9.0 protobuf>=3.0.0 six>=1.9.0
+ mock setuptools filelock 'numpy>=1.9.0' 'protobuf>=3.0.0' 'six>=1.9.0'
RUN python2.7 -m pip install \
'cython>=0.28.0' 'pytest==4.1.1' 'pytest-xdist==1.26.1' \
- mock setuptools filelock protobuf>=3.0.0 six>=1.9.0
+ mock setuptools filelock 'protobuf>=3.0.0' 'six>=1.9.0'
# Newer versions of numpy and more-itertools no longer support python2.
RUN python2.7 -m pip install 'numpy<=1.16.5' 'more-itertools<=5.0.0'
