cpython/Programs/freeze_test_frozenmain.py

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import marshal
import tokenize
import os.path
import sys
PROGRAM_DIR = os.path.dirname(__file__)
SRC_DIR = os.path.dirname(PROGRAM_DIR)
def writecode(fp, mod, data):
print('unsigned char M_%s[] = {' % mod, file=fp)
indent = ' ' * 4
for i in range(0, len(data), 16):
print(indent, file=fp, end='')
for c in bytes(data[i:i+16]):
print('%d,' % c, file=fp, end='')
print('', file=fp)
print('};', file=fp)
def dump(fp, filename, name):
# Strip the directory to get reproducible marshal dump
code_filename = os.path.basename(filename)
with tokenize.open(filename) as source_fp:
source = source_fp.read()
code = compile(source, code_filename, 'exec')
data = marshal.dumps(code)
writecode(fp, name, data)
def main():
if len(sys.argv) < 2:
print(f"usage: {sys.argv[0]} filename")
sys.exit(1)
filename = sys.argv[1]
with open(filename, "w") as fp:
print("// Auto-generated by Programs/freeze_test_frozenmain.py", file=fp)
frozenmain = os.path.join(PROGRAM_DIR, 'test_frozenmain.py')
dump(fp, frozenmain, 'test_frozenmain')
print(f"{filename} written")
if __name__ == "__main__":
main()