Fix EncodingWarning

pyperformance/_manifest.py

@@ -277,7 +277,7 @@ def _iter_sections(lines):
 def _parse_manifest_file(filename):
     relroot = os.path.dirname(filename)
     filename = _utils.resolve_file(filename, relroot)
-    with open(filename) as infile:
+    with open(filename, encoding="utf-8") as infile:
         yield from _parse_manifest(infile, filename)
 
 

pyperformance/_pyproject_toml.py

@@ -82,7 +82,7 @@ def load_pyproject_toml(filename, *, name=None, tools=None, requirefiles=True):
     else:
         rootdir = os.path.dirname(filename)
 
-    with open(filename) as infile:
+    with open(filename, encoding="utf-8") as infile:
         text = infile.read()
     data = parse_pyproject_toml(text, rootdir, name,
                                 tools=tools,

pyperformance/_utils.py

@@ -174,7 +174,7 @@ def parse_selections(selections, parse_entry=None):
 
 
 def iter_clean_lines(filename):
-    with open(filename) as reqsfile:
+    with open(filename, encoding="utf-8") as reqsfile:
         for line in reqsfile:
             # strip comment
             line = line.partition('#')[0]

pyperformance/tests/test_compare.py

@@ -1,5 +1,4 @@
 #!/usr/bin/env python3
-import io
 import os.path
 import subprocess
 import sys
@@ -135,7 +134,7 @@ def test_csv(self):
         with tests.temporary_file() as tmp:
             self.compare("--csv", tmp)
 
-            with io.open(tmp, "r") as fp:
+            with open(tmp, "r", encoding="utf-8") as fp:
                 csv = fp.read()
 
             self.assertEqual(csv,

setup.py

@@ -57,11 +57,10 @@
 # put most of the code inside main() to be able to import setup.py in
 # unit tests
 def main():
-    import io
     import os.path
     from setuptools import setup, find_packages
 
-    with io.open('README.rst', encoding="utf8") as fp:
+    with open('README.rst', encoding="utf8") as fp:
         long_description = fp.read().strip()
 
     options = {