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Several locations with simple usage of deprecated "imp" module
changed to use "importlib". These match with work in #3159,
but this is not a complete implementation of #3159.
More regex patterns are changed to be raw strings.
Some strings which did not seem appropriate to change to raw
strings (e.g. contain embedded tabs, which Python should honor)
had backslashes escaped to avoid accidental Python interpretation.
Example:
'\t<Import Project="$(VCTargetsPath)\\Microsoft.Cpp.targets" />\n'
Python 3.8 was Warning \M was an unknown escape.
More open().write(), open().read() style usage changed to use
context managers so the file is closed.
WIP part: even with Python 3.7, the tests which call sconsign.py
fail; oddly they do not fail without the patch to compat.py.
sconsign.py does an import using imp module (which is what
generates the errors) so needs to be updated anyway. It does not
quite fit the "simple usage" pattern - can't do a simple relative
import since sconsign is normally located elsewhere in the tree than
the main scons code body.
With this version of the patch, 700 tests now pass with 3.8, and
Warning messages reduced to 2800 (current master has 200 pass,
9000 warns)
Signed-off-by: Mats Wichmann <mats@linux.com>
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were breaking Windows tests.
Signed-off-by: Mats Wichmann <mats@linux.com>
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To fix some test problems for pypy, which seem more prone to
problems of lost data if files are written and not explicitly
closed, add context managers on file opens in scons-time.
Also quiets warnings which are emitted by the much noisier
Python 3.8. Changes are to the scons-time script and to
the framework.
After visual inspection of outputs while debugging, switched
the framework's created tools in the scons-time area to use
os.linesep instead of explicit '\\n' strings, tools should
operate in a native way.
Signed-off-by: Mats Wichmann <mats@linux.com>
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As noted in issue #3304, the Python flag to error on inconsistent
tabs/spaces has been dropped for Python 3 interpreters; while
CPython still accepts it, silently ignoring it, PyPy3 errors out.
This change adds the flag throughout the testsuite run only if
using a Python2 interpreter.
Signed-off-by: Mats Wichmann <mats@linux.com>
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Plenty of complaints coming from Python 3.8alpha on unclosed files.
Targeted those areas which intersect with PyPy failures - this changeset
reduces the PyPy fails by 17 on the local test environment.
So this affects both Issue #3299 and the PyPy support project.
Signed-off-by: Mats Wichmann <mats@linux.com>
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quite some time
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