introduced f-strings

setup.py

@@ -80,8 +80,7 @@ def run(self):
  with open(join(dirname(__file__), 'src', 'pytest-cov.pth'), 'w') as fh:
  with open(join(dirname(__file__), 'src', 'pytest-cov.embed')) as sh:
  fh.write(
- 'import os, sys;'
- 'exec(%r)' % sh.read().replace(' ', ' ')
+ f"import os, sys;exec({sh.read().replace(' ', ' ')!r})"
  )
 
 

src/pytest_cov/engine.py

@@ -140,19 +140,19 @@ def summary(self, stream):
 
  # Output coverage section header.
  if len(self.node_descs) == 1:
- self.sep(stream, '-', 'coverage: %s' % ''.join(self.node_descs))
+ self.sep(stream, '-', f"coverage: {''.join(self.node_descs)}")
  else:
  self.sep(stream, '-', 'coverage')
  for node_desc in sorted(self.node_descs):
- self.sep(stream, ' ', '%s' % node_desc)
+ self.sep(stream, ' ', f'{node_desc}')
 
  # Report on any failed workers.
  if self.failed_workers:
  self.sep(stream, '-', 'coverage: failed workers')
  stream.write('The following workers failed to return coverage data, '
  'ensure that pytest-cov is installed on these workers.\n')
  for node in self.failed_workers:
- stream.write('%s\n' % node.gateway.id)
+ stream.write(f'{node.gateway.id}\n')
 
  # Produce terminal report if wanted.
  if any(x in self.cov_report for x in ['term', 'term-missing']):
@@ -178,7 +178,7 @@ def summary(self, stream):
  with _backup(self.cov, "config"):
  total = self.cov.report(ignore_errors=True, file=_NullFile)
  if annotate_dir:
- stream.write('Coverage annotated source written to dir %s\n' % annotate_dir)
+ stream.write(f'Coverage annotated source written to dir {annotate_dir}\n')
  else:
  stream.write('Coverage annotated source written next to source\n')
 
@@ -187,14 +187,14 @@ def summary(self, stream):
  output = self.cov_report['html']
  with _backup(self.cov, "config"):
  total = self.cov.html_report(ignore_errors=True, directory=output)
- stream.write('Coverage HTML written to dir %s\n' % (self.cov.config.html_dir if output is None else output))
+ stream.write(f'Coverage HTML written to dir {self.cov.config.html_dir if output is None else output}\n')
 
  # Produce xml report if wanted.
  if 'xml' in self.cov_report:
  output = self.cov_report['xml']
  with _backup(self.cov, "config"):
  total = self.cov.xml_report(ignore_errors=True, outfile=output)
- stream.write('Coverage XML written to file %s\n' % (self.cov.config.xml_output if output is None else output))
+ stream.write(f'Coverage XML written to file {self.cov.config.xml_output if output is None else output}\n')
 
  # Produce lcov report if wanted.
  if 'lcov' in self.cov_report:
@@ -206,7 +206,7 @@ def summary(self, stream):
  # Coverage.lcov_report doesn't return any total and we need it for --cov-fail-under.
  total = self.cov.report(ignore_errors=True, file=_NullFile)
 
- stream.write('Coverage LCOV written to file %s\n' % (self.cov.config.lcov_output if output is None else output))
+ stream.write(f'Coverage LCOV written to file {self.cov.config.lcov_output if output is None else output}\n')
 
  return total
 

src/pytest_cov/plugin.py

@@ -305,9 +305,9 @@ def pytest_runtestloop(self, session):
  try:
  self.cov_total = self.cov_controller.summary(self.cov_report)
  except CoverageException as exc:
- message = 'Failed to generate report: %s\n' % exc
+ message = f'Failed to generate report: {exc}\n'
  session.config.pluginmanager.getplugin("terminalreporter").write(
- 'WARNING: %s\n' % message, red=True, bold=True)
+ f'WARNING: {message}\n', red=True, bold=True)
  warnings.warn(CovReportWarning(message))
  self.cov_total = 0
  assert self.cov_total is not None, 'Test coverage should never be `None`'
@@ -319,7 +319,7 @@ def pytest_terminal_summary(self, terminalreporter):
  if self._disabled:
  if self.options.no_cov_should_warn:
  message = 'Coverage disabled via --no-cov switch!'
- terminalreporter.write('WARNING: %s\n' % message, red=True, bold=True)
+ terminalreporter.write(f'WARNING: {message}\n', red=True, bold=True)
  warnings.warn(CovDisabledWarning(message))
  return
  if self.cov_controller is None: