def patch(env):
assert env.sys_version_info[:2] == (3, 1)
pytest_location, pytest_version = _scan(env)
if parse_version(pytest_version) >= parse_version("2.6.0"):
return
print("Patching installed pytest package...")
file_path = os.path.join(pytest_location, "_pytest", "runner.py")
file_temp_path = _file_temp_path(file_path)
try:
try:
prepatched_count, patched_count = _patch(file_path, file_temp_path,
unpatched_regex="(.*\s)callable([(].*)$",
patched_regex="(.*\s)py[.]builtin[.]callable([(].*)",
patch_pattern="%spy.builtin.callable%s")
if (prepatched_count, patched_count) not in ((1, 0), (0, 1)):
_error(file_path, "file content not recognized")
if prepatched_count:
print("WARNING: pytest already patched")
else:
os.remove(file_path)
os.rename(file_temp_path, file_path)
finally:
_try_remove_file(file_temp_path)
except (EnvironmentSetupError, KeyboardInterrupt, SystemExit):
raise
except Exception:
_error(file_path, str(sys.exc_info()[1]))
def check_Python24_pytest_requirements():
"""
Check pytest requirements in the current Python 2.4.x environment.
Installing pytest into a Python 2.4.x environment requires specific py &
pytest package versions. This function checks whether the environment has
such compatible Python environments installed.
Returns a 2-tuple (have_pytest, have_py) indicating whether valid pytest &
py library packages have been detected in the current Python 2.4.x
environment. If the pytest package has not been detected, the py library
package will not be checked and the have_py value will be set to None.
See the module docstring for more detailed information.
"""
assert sys.version_info[:2] == (2, 4)
try:
from pytest import __version__ as pytest_version
except ImportError:
return False, None # no pytest
pv_from = parse_version(_first_supported_pytest_version)
pv_to = parse_version(_first_unsupported_pytest_version_on_Python_24)
if not (pv_from <= parse_version(pytest_version) < pv_to):
return False, None # incompatible pytest version
try:
from py import __version__ as py_version
except ImportError:
return True, False # no py library package
pv_unsupported = parse_version(_first_unsupported_py_version_on_Python_24)
if parse_version(py_version) >= pv_unsupported:
return True, False # incompatible py library package version
return True, True
def check_Python24_pytest_requirements():
"""
Check pytest requirements in the current Python 2.4.x environment.
Installing pytest into a Python 2.4.x environment requires specific py &
pytest package versions. This function checks whether the environment has
such compatible Python environments installed.
Returns a 2-tuple (have_pytest, have_py) indicating whether valid pytest &
py library packages have been detected in the current Python 2.4.x
environment. If the pytest package has not been detected, the py library
package will not be checked and the have_py value will be set to None.
See the module docstring for more detailed information.
"""
assert sys.version_info[:2] == (2, 4)
try:
from pytest import __version__ as pytest_version
except ImportError:
return False, None # no pytest
pv_from = parse_version(_first_supported_pytest_version)
pv_to = parse_version(_first_unsupported_pytest_version_on_Python_24)
if not (pv_from <= parse_version(pytest_version) < pv_to):
return False, None # incompatible pytest version
try:
from py import __version__ as py_version
except ImportError:
return True, False # no py library package
pv_unsupported = parse_version(_first_unsupported_py_version_on_Python_24)
if parse_version(py_version) >= pv_unsupported:
return True, False # incompatible py library package version
return True, True
def _reuse_pre_installed_setuptools(env, installer):
"""
Return whether a pre-installed setuptools distribution should be reused.
"""
if not env.setuptools_version:
return # no prior setuptools ==> no reuse
reuse_old = config.reuse_old_setuptools
reuse_best = config.reuse_best_setuptools
reuse_future = config.reuse_future_setuptools
reuse_comment = None
if reuse_old or reuse_best or reuse_future:
pv_old = parse_version(env.setuptools_version)
pv_new = parse_version(installer.setuptools_version())
if pv_old < pv_new:
if reuse_old:
reuse_comment = "%s+ recommended" % (
installer.setuptools_version(),)
elif pv_old > pv_new:
if reuse_future:
reuse_comment = "%s+ required" % (
installer.setuptools_version(),)
elif reuse_best:
reuse_comment = ""
if reuse_comment is None:
return # reuse not allowed by configuration
if reuse_comment:
reuse_comment = " (%s)" % (reuse_comment,)
print("Reusing pre-installed setuptools %s distribution%s." % (
env.setuptools_version, reuse_comment))
return True # reusing pre-installed setuptools
def _reuse_pre_installed_setuptools(env, installer):
"""
Return whether a pre-installed setuptools distribution should be reused.
"""
if not env.setuptools_version:
return # no prior setuptools ==> no reuse
reuse_old = config.reuse_old_setuptools
reuse_best = config.reuse_best_setuptools
reuse_future = config.reuse_future_setuptools
reuse_comment = None
if reuse_old or reuse_best or reuse_future:
pv_old = parse_version(env.setuptools_version)
pv_new = parse_version(installer.setuptools_version())
if pv_old < pv_new:
if reuse_old:
reuse_comment = "%s+ recommended" % (
installer.setuptools_version(), )
elif pv_old > pv_new:
if reuse_future:
reuse_comment = "%s+ required" % (
installer.setuptools_version(), )
elif reuse_best:
reuse_comment = ""
if reuse_comment is None:
return # reuse not allowed by configuration
if reuse_comment:
reuse_comment = " (%s)" % (reuse_comment, )
print("Reusing pre-installed setuptools %s distribution%s." %
(env.setuptools_version, reuse_comment))
return True # reusing pre-installed setuptools
def _avoid_setuptools_zipped_egg_upgrade_issue(env, ez_setup):
"""
Avoid the setuptools self-upgrade issue.
setuptools versions prior to version 3.5.2 have a bug that can cause their
upgrade installations to fail when installing a new zipped egg distribution
over an existing zipped egg setuptools distribution with the same name.
The following Python versions are not affected by this issue:
Python 2.4 - use setuptools 1.4.2 - installs itself as a non-zipped egg
Python 2.6+ - use setuptools versions not affected by this issue
That just leaves Python versions 2.5.x to worry about.
This problem occurs because of an internal stale cache issue causing the
upgrade to read data from the new zip archive at a location calculated
based on the original zip archive's content, effectively causing such read
operations to either succeed (if read content had not changed its
location), fail with a 'bad local header' exception or even fail silently
and return incorrect data.
To avoid the issue, we explicitly uninstall the previously installed
setuptools distribution before installing its new version.
"""
if env.sys_version_info[:2] != (2, 5):
return # only Python 2.5.x affected by this
if not env.setuptools_zipped_egg:
return # setuptools not pre-installed as a zipped egg
pv_new = parse_version(ez_setup.setuptools_version())
if pv_new != parse_version(env.setuptools_version):
return # issue avoided since zipped egg archive names will not match
fixed_version = utility.lowest_version_string_with_prefix("3.5.2")
if pv_new >= parse_version(fixed_version):
return # issue fixed in setuptools
# We could check for pip and use it for a cleaner setuptools uninstall if
# available, but YAGNI since only Python 2.5.x environments are affected by
# the zipped egg upgrade issue.
os.remove(env.setuptools_zipped_egg)
def _avoid_setuptools_zipped_egg_upgrade_issue(env, ez_setup):
"""
Avoid the setuptools self-upgrade issue.
setuptools versions prior to version 3.5.2 have a bug that can cause their
upgrade installations to fail when installing a new zipped egg distribution
over an existing zipped egg setuptools distribution with the same name.
The following Python versions are not affected by this issue:
Python 2.4 - use setuptools 1.4.2 - installs itself as a non-zipped egg
Python 2.6+ - use setuptools versions not affected by this issue
That just leaves Python versions 2.5.x to worry about.
This problem occurs because of an internal stale cache issue causing the
upgrade to read data from the new zip archive at a location calculated
based on the original zip archive's content, effectively causing such read
operations to either succeed (if read content had not changed its
location), fail with a 'bad local header' exception or even fail silently
and return incorrect data.
To avoid the issue, we explicitly uninstall the previously installed
setuptools distribution before installing its new version.
"""
if env.sys_version_info[:2] != (2, 5):
return # only Python 2.5.x affected by this
if not env.setuptools_zipped_egg:
return # setuptools not pre-installed as a zipped egg
pv_new = parse_version(ez_setup.setuptools_version())
if pv_new != parse_version(env.setuptools_version):
return # issue avoided since zipped egg archive names will not match
fixed_version = utility.lowest_version_string_with_prefix("3.5.2")
if pv_new >= parse_version(fixed_version):
return # issue fixed in setuptools
# We could check for pip and use it for a cleaner setuptools uninstall if
# available, but YAGNI since only Python 2.5.x environments are affected by
# the zipped egg upgrade issue.
os.remove(env.setuptools_zipped_egg)
