When checking the impact of upgradign pip from 23.0.1 to 23.1.2 in https://src.fedoraproject.org/rpms/python-pip/pull-request/123 I realized python-argcomplete repeatedly fails with the new pip but succeeds with the old one.

The error is:


======================================================================
FAIL: test_console_script_module (test.test.TestBashGlobal.test_console_script_module)
Test completing a console_script for a module.
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/builddir/build/BUILD/argcomplete-2.0.0/test/test.py", line 1293, in test_console_script_module
    self._test_console_script()
  File "/builddir/build/BUILD/argcomplete-2.0.0/test/test.py", line 1283, in _test_console_script
    self.assertEqual(self.sh.run_command('echo $?'), '0\r\n', install_output)
AssertionError: '1\r\n' != '0\r\n'
- 1
+ 0
 : Processing /builddir/build/BUILD/argcomplete-2.0.0/test/test_package
  Installing build dependencies ... [?25l- \ | / - error
  error: subprocess-exited-with-error
  
  × pip subprocess to install build dependencies did not run successfully.
  │ exit code: 1
  ╰─> [7 lines of output]
      WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f5a0e412190>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/setuptools/
      WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f5a0ca518d0>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/setuptools/
      WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f5a0ca9fe90>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/setuptools/
      WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f5a0e61cd10>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/setuptools/
      WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f5a0e17e290>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/setuptools/
      ERROR: Could not find a version that satisfies the requirement setuptools>=40.8.0 (from versions: none)
      ERROR: No matching distribution found for setuptools>=40.8.0
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error

× pip subprocess to install build dependencies did not run successfully.
│ exit code: 1
╰─> See above for output.

note: This error originates from a subprocess, and is likely not a problem with pip.
[?25h

======================================================================
FAIL: test_console_script_module_wheel (test.test.TestBashGlobal.test_console_script_module_wheel)
Test completing a console_script for a module from a wheel.
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/builddir/build/BUILD/argcomplete-2.0.0/test/test.py", line 1303, in test_console_script_module_wheel
    self._test_console_script(wheel=True)
  File "/builddir/build/BUILD/argcomplete-2.0.0/test/test.py", line 1283, in _test_console_script
    self.assertEqual(self.sh.run_command('echo $?'), '0\r\n', install_output)
AssertionError: '1\r\n' != '0\r\n'
- 1
+ 0
 : Processing /builddir/build/BUILD/argcomplete-2.0.0/test/test_package
  Installing build dependencies ... [?25l- \ | / - error
  error: subprocess-exited-with-error
  
  × pip subprocess to install build dependencies did not run successfully.
  │ exit code: 1
  ╰─> [7 lines of output]
      WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f85102b2c90>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/setuptools/
      WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f850ea25cd0>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/setuptools/
      WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f850ea73ad0>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/setuptools/
      WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f85105f1c90>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/setuptools/
      WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f8510152410>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/setuptools/
      ERROR: Could not find a version that satisfies the requirement setuptools>=40.8.0 (from versions: none)
      ERROR: No matching distribution found for setuptools>=40.8.0
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error

× pip subprocess to install build dependencies did not run successfully.
│ exit code: 1
╰─> See above for output.

note: This error originates from a subprocess, and is likely not a problem with pip.
[?25h

======================================================================
FAIL: test_console_script_package (test.test.TestBashGlobal.test_console_script_package)
Test completing a console_script for a package.
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/builddir/build/BUILD/argcomplete-2.0.0/test/test.py", line 1298, in test_console_script_package
    self._test_console_script(package=True)
  File "/builddir/build/BUILD/argcomplete-2.0.0/test/test.py", line 1283, in _test_console_script
    self.assertEqual(self.sh.run_command('echo $?'), '0\r\n', install_output)
AssertionError: '1\r\n' != '0\r\n'
- 1
+ 0
 : Processing /builddir/build/BUILD/argcomplete-2.0.0/test/test_package
  Installing build dependencies ... [?25l- \ | / - error
  error: subprocess-exited-with-error
  
  × pip subprocess to install build dependencies did not run successfully.
  │ exit code: 1
  ╰─> [7 lines of output]
      WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f5b5d74e690>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/setuptools/
      WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f5b5bbe30d0>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/setuptools/
      WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f5b5bc2b9d0>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/setuptools/
      WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f5b5d752310>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/setuptools/
      WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f5b5bc40d10>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/setuptools/
      ERROR: Could not find a version that satisfies the requirement setuptools>=40.8.0 (from versions: none)
      ERROR: No matching distribution found for setuptools>=40.8.0
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error

× pip subprocess to install build dependencies did not run successfully.
│ exit code: 1
╰─> See above for output.

note: This error originates from a subprocess, and is likely not a problem with pip.
[?25h

======================================================================
FAIL: test_console_script_package_wheel (test.test.TestBashGlobal.test_console_script_package_wheel)
Test completing a console_script for a package from a wheel.
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/builddir/build/BUILD/argcomplete-2.0.0/test/test.py", line 1308, in test_console_script_package_wheel
    self._test_console_script(package=True, wheel=True)
  File "/builddir/build/BUILD/argcomplete-2.0.0/test/test.py", line 1283, in _test_console_script
    self.assertEqual(self.sh.run_command('echo $?'), '0\r\n', install_output)
AssertionError: '1\r\n' != '0\r\n'
- 1
+ 0
 : Processing /builddir/build/BUILD/argcomplete-2.0.0/test/test_package
  Installing build dependencies ... [?25l- \ | / - error
  error: subprocess-exited-with-error
  
  × pip subprocess to install build dependencies did not run successfully.
  │ exit code: 1
  ╰─> [7 lines of output]
      WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f140e0f4490>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/setuptools/
      WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f140c897790>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/setuptools/
      WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f140c897190>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/setuptools/
      WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f140e429d10>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/setuptools/
      WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f140df8b2d0>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/setuptools/
      ERROR: Could not find a version that satisfies the requirement setuptools>=40.8.0 (from versions: none)
      ERROR: No matching distribution found for setuptools>=40.8.0
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error

× pip subprocess to install build dependencies did not run successfully.
│ exit code: 1
╰─> See above for output.

note: This error originates from a subprocess, and is likely not a problem with pip.
[?25h

----------------------------------------------------------------------
Ran 148 tests in 125.304s

FAILED (failures=4, skipped=2, expected failures=13)
Test failed: <unittest.runner.TextTestResult run=148 errors=0 failures=4>
error: Test failed: <unittest.runner.TextTestResult run=148 errors=0 failures=4>
error: Bad exit status from /var/tmp/rpm-tmp.F6kYFS (%check)
    Bad exit status from /var/tmp/rpm-tmp.F6kYFS (%check)


I believe pip defaults to isolated builds now and will always attempt to install build dependencies (setuptools>=40.8.0 in this case because that I the default when no build dependencies are mentioned in pyproject.toml) from the internet to a temporary virtual environment.

I think this can be fixed by adding --no-build-isolation to pip install in tests:

$ pip install --help | grep isolation
  --no-build-isolation        Disable isolation when building a modern source

Reproducible: Always

Steps to Reproduce:
Build python-argcomplete e.g. in https://copr.fedorainfracloud.org/coprs/churchyard/pip-23.1.2
Actual Results:  
Build fails.

Expected Results:  
Build succeeds.

All logs available at https://copr.fedorainfracloud.org/coprs/churchyard/pip-23.1.2/package/python-argcomplete/