Fix build docs on with newer pip versions

A patch for 3b224e1
fmtlib · Jul 26, 2015 · 583f7e9 · 583f7e9
1 parent 0586a9e
commit 583f7e9
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/doc/build.py b/doc/build.py
@@ -17,7 +17,7 @@ def pip_install(package, commit=None):
       # Old versions of pip such as the one installed on Travis don't support
       # the show command - continue installation in this case.
       # Otherwise throw CalledProcessError.
-      if 'No command by the name pip show' not in stderr:
+      if p.returncode > 1 and 'No command by the name pip show' not in stderr:
         raise CalledProcessError(p.returncode, cmd)
     package = 'git+git://github.com/{0}.git@{1}'.format(package, commit)
   check_call(['pip', 'install', '-q', package])