build-common

commit 426b0a9cf04cf1712c7bd644ee6c1d74caf97917
parent 90894782ecfeaa2f9e61bca99146b1079e215cd7
Author: ng0 <ng0@n0.is>
Date:   Tue, 29 Oct 2019 21:36:56 +0000

python is not always python3.

Diffstat:
M
talerbuildconfig.py
 | 
10
++++++----

1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/talerbuildconfig.py b/talerbuildconfig.py
@@ -234,10 +234,12 @@ class PythonTool(Tool):
     def check(self, buildconfig):
         # No suffix. Would probably be cheaper to do this in
         # the dict as well. We need at least version 3.7.
-        if existence("python"):
-            if sys.version_info >= (3, 7):
-                python3_version = sys.version[0:5]
-                buildconfig._set_tool("python", "python", python3_version)
+        if existence("python") and (subprocess.check_output(["python", "--version"]).split()[1] >= b'3.7'):
+            # python might not be python3. It might not even be
+            # python 3.x.
+            python_version = subprocess.check_output(["python", "--version"]).split()[1]
+            if python_version >= b'3.7':
+                buildconfig._set_tool("python", "python", python_version)
                 return True
         else:
             # Has suffix, try suffix. We know the names in advance,