Merge pull request #6 from cornershop/develop

fix(api_auth.signature): always use en_US locale

.travis.yml

@@ -1,9 +1,9 @@
 language: python
 
 python:
-  - 3.3
   - 3.4
   - 3.5
+  - 3.6
 
 install:
   - pip install -r requirements.txt

mifiel/api_auth/context_manager.py

@@ -0,0 +1,16 @@
+import locale
+import threading
+
+from contextlib import contextmanager
+
+LOCALE_LOCK = threading.Lock()
+
+
+@contextmanager
+def setlocale(name):
+    with LOCALE_LOCK:
+        saved = locale.setlocale(locale.LC_ALL)
+        try:
+            yield locale.setlocale(locale.LC_ALL, name)
+        finally:
+            locale.setlocale(locale.LC_ALL, saved)

mifiel/api_auth/signature.py

@@ -2,6 +2,9 @@
 import base64
 import hashlib
 import datetime
+
+from mifiel.api_auth.context_manager import setlocale
+
 try:
   from urllib.parse import urlparse
 except:
@@ -36,7 +39,8 @@ def build(self, method, url, body, content_md5=None, content_type=None, httpdate
     self.httpdate = httpdate
     if not self.httpdate:
       now = datetime.datetime.utcnow()
-      self.httpdate = now.strftime('%a, %d %b %Y %H:%M:%S GMT')
+      with setlocale('en_US.UTF-8'):
+        self.httpdate = now.strftime('%a, %d %b %Y %H:%M:%S GMT')
 
     url = urlparse(url)
     path = url.path