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import marshal
import string
# Write a file containing frozen code for the modules in the dictionary.
header = """
#include "Python.h"
static struct _frozen _PyImport_FrozenModules[] = {
"""
trailer = """\
{0, 0, 0} /* sentinel */
};
"""
# if __debug__ == 0 (i.e. -O option given), set Py_OptimizeFlag in frozen app.
default_entry_point = """
int
main(argc, argv)
int argc;
char **argv;
{
""" + ((not __debug__ and """
Py_OptimizeFlag++;
""") or "") + """
PyImport_FrozenModules = _PyImport_FrozenModules;
return Py_FrozenMain(argc, argv);
}
"""
def makefreeze(outfp, dict, debug=0, entry_point = None):
if entry_point is None: entry_point = default_entry_point
done = []
mods = dict.keys()
mods.sort()
for mod in mods:
m = dict[mod]
mangled = string.join(string.split(mod, "."), "__")
if m.__code__:
if debug:
print "freezing", mod, "..."
str = marshal.dumps(m.__code__)
size = len(str)
if m.__path__:
# Indicate package by negative size
size = -size
done.append((mod, mangled, size))
writecode(outfp, mangled, str)
if debug:
print "generating table of frozen modules"
outfp.write(header)
for mod, mangled, size in done:
outfp.write('\t{"%s", M_%s, %d},\n' % (mod, mangled, size))
outfp.write(trailer)
outfp.write(entry_point)
# Write a C initializer for a module containing the frozen python code.
# The array is called M_<mod>.
def writecode(outfp, mod, str):
outfp.write('static unsigned char M_%s[] = {' % mod)
for i in range(0, len(str), 16):
outfp.write('\n\t')
for c in str[i:i+16]:
outfp.write('%d,' % ord(c))
outfp.write('\n};\n')
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