diff options
Diffstat (limited to 'src/pip/_internal/req/req_install.py')
| -rw-r--r-- | src/pip/_internal/req/req_install.py | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/pip/_internal/req/req_install.py b/src/pip/_internal/req/req_install.py index 889fe1d39..8d4f9ef46 100644 --- a/src/pip/_internal/req/req_install.py +++ b/src/pip/_internal/req/req_install.py @@ -771,11 +771,13 @@ class InstallRequirement(object): # Options specified in requirements file override those # specified on the command line, since the last option given # to setup.py is the one that is used. - global_options += self.options.get('global_options', []) - install_options += self.options.get('install_options', []) + global_options = list(global_options) + \ + self.options.get('global_options', []) + install_options = list(install_options) + \ + self.options.get('install_options', []) if self.isolated: - global_options = list(global_options) + ["--no-user-cfg"] + global_options = global_options + ["--no-user-cfg"] with TempDirectory(kind="record") as temp_dir: record_filename = os.path.join(temp_dir.path, 'install-record.txt') |