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PYTHON test.py
######## test.py ########
from __future__ import print_function
import os.path
from Cython.Utils import is_cython_generated_file
from Cython.Compiler.Errors import CompileError
from Cython.Build.Dependencies import cythonize
# Make sure the source files are newer than the .c files, so that cythonize() regenerates them.
files = {}
for source_file in sorted(os.listdir(os.getcwd())):
if 'module' in source_file and (source_file.endswith(".pyx") or source_file.endswith(".py")):
c_file = files[source_file] = os.path.splitext(source_file)[0] + ".c"
os.utime(source_file, None)
assert not os.path.exists(c_file) or os.path.getmtime(source_file) >= os.path.getmtime(c_file)
for source_file, c_file in files.items():
print("Testing:", source_file, c_file)
assert is_cython_generated_file(c_file, allow_failed=True, if_not_found=True)
# cythonizing should (re)generate the file
cythonize(source_file, language_level=3)
assert is_cython_generated_file(c_file, if_not_found=False)
assert os.path.getmtime(source_file) <= os.path.getmtime(c_file)
# calling cythonize again should not rewrite the file
# (not asserting this here, but at least it shouldn't fail)
cythonize(source_file, language_level=3)
assert is_cython_generated_file(c_file, if_not_found=False)
assert os.path.getmtime(source_file) <= os.path.getmtime(c_file)
# But overwriting an unknown file should fail, even when requested multiple times.
for source_file in [
"refuse_to_overwrite.pyx",
"refuse_to_overwrite.py",
"compile_failure.pyx",
"refuse_to_overwrite_header.pyx",
"refuse_to_overwrite_api_header.pyx",
]:
if 'api_header' in source_file:
target_file = os.path.splitext(source_file)[0] + "_api.h"
elif 'header' in source_file:
target_file = os.path.splitext(source_file)[0] + ".h"
else:
target_file = os.path.splitext(source_file)[0] + ".c"
for _ in range(3):
os.utime(source_file, None)
assert not is_cython_generated_file(target_file)
try:
print("Testing:", source_file)
cythonize(source_file, language_level=3)
except CompileError:
print("REFUSED to overwrite %s, OK" % target_file)
assert not is_cython_generated_file(target_file)
else:
assert False, "FAILURE: Existing output file was overwritten for source file %s" % source_file
######## pymodule.c ########
#error Do not use this file, it is the result of a failed Cython compilation.
######## pymodule.py ########
"""
Overwriting a failed .py file result works
"""
######## cymodule.c ########
#error Do not use this file, it is the result of a failed Cython compilation.
######## cymodule.pyx ########
"""
Overwriting a failed .pyx file result works
"""
######## overwritten_cymodule.c ########
/* Generated by Cython 0.8.15 */
######## overwritten_cymodule.pyx ########
"""
Overwriting an outdated .c file works
"""
######## new_cymodule.pyx ########
"""
Creating a new .c file works
"""
######## new_pymodule.py ########
"""
Creating a new .c file works
"""
######## refuse_to_overwrite.c ########
static int external_function(int x) {
return x + 1;
}
######## refuse_to_overwrite.py ########
"""
Do not overwrite an unknown output file
"""
######## refuse_to_overwrite.pyx ########
"""
Do not overwrite an unknown output file
"""
######## compile_failure.c ########
static int external_function(int x) {
return x + 1;
}
######## compile_failure.pyx ########
"""
Do not overwrite an unknown output file even on compile failures.
"""
Not Python syntax!
######## write_module_header.pyx ########
cdef public int func():
return 1
######## overwrite_module_header.c ########
/* Generated by Cython 0.8.15 */
######## overwrite_module_header.pyx ########
cdef public int func():
return 1
######## refuse_to_overwrite_header.h ########
static int external_function(int x) {
return x + 1;
}
######## refuse_to_overwrite_header.pyx ########
cdef public int func():
return 1
######## write_module_api_header.pyx ########
cdef api int func():
return 1
######## overwrite_module_api_header.c ########
/* Generated by Cython 0.8.15 */
######## overwrite_module_api_header.pyx ########
cdef public int func():
return 1
######## refuse_to_overwrite_api_header_api.h ########
static int external_function(int x) {
return x + 1;
}
######## refuse_to_overwrite_api_header.pyx ########
cdef api int func():
return 1
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