pylint fix

Author: nschloe

test/helpers.py

@@ -85,17 +85,13 @@ def __init__(self, fig):
             stderr=subprocess.STDOUT
             ).decode('utf-8')
         # Extract page size
-        dims = None
-        for line in pdfinfo_out.split('\n'):
-            # Page size:      195.106 x 156.239 pts
-            m = re.match(
-                'Page size: *([0-9]+\.[0-9]+) x ([0-9]+\.[0-9]+) pts',
-                line
-                )
-            if m:
-                # get dims in inches
-                dims = [float(m.group(1)) / 72, float(m.group(2)) / 72]
-                break
+        # Page size:      195.106 x 156.239 pts
+        m = re.search(
+            'Page size: *([0-9]+\.[0-9]+) x ([0-9]+\.[0-9]+) pts',
+            pdfinfo_out
+            )
+        # get dims in inches
+        dims = [float(m.group(1)) / 72, float(m.group(2)) / 72]
         assert dims is not None
         max_num_pixels = 89e6
         max_dpi = math.sqrt(max_num_pixels / dims[0] / dims[1])