Test compatibility with Python 3.4

17451k · Mar 1, 2019 · 2586f62 · 2586f62
1 parent 78aed60
commit 2586f62
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Showing 2 changed files with 7 additions and 2 deletions.
diff --git a/.travis.yml b/.travis.yml
@@ -1,9 +1,9 @@
 language: python
 
 dist: xenial
-sudo: true
 
 python:
+  - "3.4"
   - "3.5"
   - "3.6"
   - "3.7"

diff --git a/clade/extensions/info.py b/clade/extensions/info.py
@@ -28,6 +28,11 @@
 from clade.extensions.utils import common_main
 
 
+# multiprocessing form Python 3.4 can't pickle Info._normalize_file directly
+def unwrap(self, file):
+    self._normalize_file(file)
+
+
 class Info(Extension):
     always_requires = ["SrcGraph", "Path", "Storage"]
     requires = always_requires + ["CC", "CL"]
@@ -285,7 +290,7 @@ def __normalize_cif_output(self, cmds_file):
             max_workers=os.cpu_count()
         ) as p:
             for file in [f for f in self.files if f != self.init_global]:
-                p.submit(Info._normalize_file, self, file)
+                p.submit(unwrap, self, file)
 
         self.log("Normalizing finished")