import sys import compileall import imp import os import py_compile import shutil import struct import subprocess import tempfile import unittest import io from test import support class CompileallTests(unittest.TestCase): def setUp(self): self.directory = tempfile.mkdtemp() self.source_path = os.path.join(self.directory, '_test.py') self.bc_path = imp.cache_from_source(self.source_path) with open(self.source_path, 'w') as file: file.write('x = 123\n') self.source_path2 = os.path.join(self.directory, '_test2.py') self.bc_path2 = imp.cache_from_source(self.source_path2) shutil.copyfile(self.source_path, self.source_path2) def tearDown(self): shutil.rmtree(self.directory) def data(self): with open(self.bc_path, 'rb') as file: data = file.read(8) mtime = int(os.stat(self.source_path).st_mtime) compare = struct.pack('<4sl', imp.get_magic(), mtime) return data, compare def recreation_check(self, metadata): """Check that compileall recreates bytecode when the new metadata is used.""" if not hasattr(os, 'stat'): return py_compile.compile(self.source_path) self.assertEqual(*self.data()) with open(self.bc_path, 'rb') as file: bc = file.read()[len(metadata):] with open(self.bc_path, 'wb') as file: file.write(metadata) file.write(bc) self.assertNotEqual(*self.data()) compileall.compile_dir(self.directory, force=False, quiet=True) self.assertTrue(*self.data()) def test_mtime(self): # Test a change in mtime leads to a new .pyc. self.recreation_check(struct.pack('<4sl', imp.get_magic(), 1)) def test_magic_number(self): # Test a change in mtime leads to a new .pyc. self.recreation_check(b'\0\0\0\0') def test_compile_files(self): # Test compiling a single file, and complete directory for fn in (self.bc_path, self.bc_path2): try: os.unlink(fn) except: pass compileall.compile_file(self.source_path, force=False, quiet=True) self.assertTrue(os.path.isfile(self.bc_path) and not os.path.isfile(self.bc_path2)) os.unlink(self.bc_path) compileall.compile_dir(self.directory, force=False, quiet=True) self.assertTrue(os.path.isfile(self.bc_path) and os.path.isfile(self.bc_path2)) os.unlink(self.bc_path) os.unlink(self.bc_path2) def test_no_pycache_in_non_package(self): # Bug 8563 reported that __pycache__ directories got created by # compile_file() for non-.py files. data_dir = os.path.join(self.directory, 'data') data_file = os.path.join(data_dir, 'file') os.mkdir(data_dir) # touch data/file with open(data_file, 'w'): pass compileall.compile_file(data_file) self.assertFalse(os.path.exists(os.path.join(data_dir, '__pycache__'))) class EncodingTest(unittest.TestCase): """Issue 6716: compileall should escape source code when printing errors to stdout.""" def setUp(self): self.directory = tempfile.mkdtemp() self.source_path = os.path.join(self.directory, '_test.py') with open(self.source_path, 'w', encoding='utf-8') as file: file.write('# -*- coding: utf-8 -*-\n') file.write('print u"\u20ac"\n') def tearDown(self): shutil.rmtree(self.directory) def test_error(self): try: orig_stdout = sys.stdout sys.stdout = io.TextIOWrapper(io.BytesIO(),encoding='ascii') compileall.compile_dir(self.directory) finally: sys.stdout = orig_stdout class CommandLineTests(unittest.TestCase): """Test some aspects of compileall's CLI.""" def setUp(self): self.addCleanup(self._cleanup) self.directory = tempfile.mkdtemp() self.pkgdir = os.path.join(self.directory, 'foo') os.mkdir(self.pkgdir) # Touch the __init__.py and a package module. with open(os.path.join(self.pkgdir, '__init__.py'), 'w'): pass with open(os.path.join(self.pkgdir, 'bar.py'), 'w'): pass sys.path.insert(0, self.directory) def _cleanup(self): support.rmtree(self.directory) assert sys.path[0] == self.directory, 'Missing path' del sys.path[0] def test_pep3147_paths(self): # Ensure that the default behavior of compileall's CLI is to create # PEP 3147 pyc/pyo files. retcode = subprocess.call( (sys.executable, '-m', 'compileall', '-q', self.pkgdir)) self.assertEqual(retcode, 0) # Verify the __pycache__ directory contents. cachedir = os.path.join(self.pkgdir, '__pycache__') self.assertTrue(os.path.exists(cachedir)) ext = ('pyc' if __debug__ else 'pyo') expected = sorted(base.format(imp.get_tag(), ext) for base in ('__init__.{}.{}', 'bar.{}.{}')) self.assertEqual(sorted(os.listdir(cachedir)), expected) # Make sure there are no .pyc files in the source directory. self.assertFalse([pyc_file for pyc_file in os.listdir(self.pkgdir) if pyc_file.endswith(ext)]) def test_legacy_paths(self): # Ensure that with the proper switch, compileall leaves legacy # pyc/pyo files, and no __pycache__ directory. retcode = subprocess.call( (sys.executable, '-m', 'compileall', '-b', '-q', self.pkgdir)) self.assertEqual(retcode, 0) # Verify the __pycache__ directory contents. cachedir = os.path.join(self.pkgdir, '__pycache__') self.assertFalse(os.path.exists(cachedir)) ext = ('pyc' if __debug__ else 'pyo') expected = [base.format(ext) for base in ('__init__.{}', 'bar.{}')] expected.extend(['__init__.py', 'bar.py']) expected.sort() self.assertEqual(sorted(os.listdir(self.pkgdir)), expected) def test_multiple_runs(self): # Bug 8527 reported that multiple calls produced empty # __pycache__/__pycache__ directories. retcode = subprocess.call( (sys.executable, '-m', 'compileall', '-q', self.pkgdir)) self.assertEqual(retcode, 0) # Verify the __pycache__ directory contents. cachedir = os.path.join(self.pkgdir, '__pycache__') self.assertTrue(os.path.exists(cachedir)) cachecachedir = os.path.join(cachedir, '__pycache__') self.assertFalse(os.path.exists(cachecachedir)) # Call compileall again. retcode = subprocess.call( (sys.executable, '-m', 'compileall', '-q', self.pkgdir)) self.assertEqual(retcode, 0) self.assertTrue(os.path.exists(cachedir)) self.assertFalse(os.path.exists(cachecachedir)) def test_main(): support.run_unittest( CommandLineTests, CompileallTests, EncodingTest, ) if __name__ == "__main__": test_main()