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build.rs: Handle python being Python 2

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If `python` refers to Python 2 (as recommended in [1]) the build fails
with:
  AttributeError: 'module' object has no attribute 'base_prefix'

Since there is no `base_prefix` in Python 2, simply use `exec_prefix` if
the AttributeError is raised.

[1] https://www.python.org/dev/peps/pep-0394/
This commit is contained in:
Alexander Niederbühl 2019-05-15 23:22:24 +02:00
parent 134c129edc
commit 21a2f816fc
1 changed files with 4 additions and 1 deletions
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5
build.rs
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@ -503,7 +503,10 @@ if PYPY:
else: else:
print(sysconfig.get_config_var('Py_ENABLE_SHARED')) print(sysconfig.get_config_var('Py_ENABLE_SHARED'))
print(sysconfig.get_config_var('LDVERSION') or sysconfig.get_config_var('py_version_short')) print(sysconfig.get_config_var('LDVERSION') or sysconfig.get_config_var('py_version_short'))
print(sys.base_prefix) try:
print(sys.base_prefix)
except AttributeError:
print(sys.exec_prefix)
print(platform.python_implementation()) print(platform.python_implementation())
"#; "#;
let out = run_python_script(interpreter, script)?; let out = run_python_script(interpreter, script)?;