1 files changed, 12 insertions, 15 deletions
diff --git a/scripts/generate_identifier_pattern.py b/scripts/generate_identifier_pattern.py
index 7db5f4a..96fedba 100755
--- a/scripts/generate_identifier_pattern.py
+++ b/scripts/generate_identifier_pattern.py
@@ -5,7 +5,7 @@ import re
 import sys
 
 if sys.version_info[0] < 3:
-    raise RuntimeError('This needs to run on Python 3.')
+    raise RuntimeError("This needs to run on Python 3.")
 
 
 def get_characters():
@@ -23,7 +23,7 @@ def get_characters():
     for cp in range(sys.maxunicode + 1):
         s = chr(cp)
 
-        if ('a' + s).isidentifier() and not re.match(r'\w', s):
+        if ("a" + s).isidentifier() and not re.match(r"\w", s):
             yield s
 
 
@@ -33,10 +33,7 @@ def collapse_ranges(data):
 
     Source: https://stackoverflow.com/a/4629241/400617
     """
-    for a, b in itertools.groupby(
-        enumerate(data),
-        lambda x: ord(x[1]) - x[0]
-    ):
+    for a, b in itertools.groupby(enumerate(data), lambda x: ord(x[1]) - x[0]):
         b = list(b)
         yield b[0][1], b[-1][1]
 
@@ -55,23 +52,23 @@ def build_pattern(ranges):
             out.append(a)
             out.append(b)
         else:
-            out.append(f'{a}-{b}')
+            out.append("{}-{}".format(a, b))
 
-    return ''.join(out)
+    return "".join(out)
 
 
 def main():
     """Build the regex pattern and write it to the file
     :file:`jinja2/_identifier.py`."""
     pattern = build_pattern(collapse_ranges(get_characters()))
-    filename = os.path.abspath(os.path.join(
-        os.path.dirname(__file__), '..', 'jinja2', '_identifier.py'
-    ))
+    filename = os.path.abspath(
+        os.path.join(os.path.dirname(__file__), "..", "src", "jinja2", "_identifier.py")
+    )
 
-    with open(filename, 'w', encoding='utf8') as f:
-        f.write('# generated by scripts/generate_identifier_pattern.py\n')
-        f.write(f'pattern = \'{pattern}\'\n')
+    with open(filename, "w", encoding="utf8") as f:
+        f.write("# generated by scripts/generate_identifier_pattern.py\n")
+        f.write('pattern = "{}"\n'.format(pattern))
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     main()