我们从Python开源项目中，提取了以下11个代码示例，用于说明如何使用re.purge()。
def test_locale_caching(self): # Issue #22410 oldlocale = locale.setlocale(locale.LC_CTYPE) self.addCleanup(locale.setlocale, locale.LC_CTYPE, oldlocale) for loc in 'en_US.iso88591', 'en_US.utf8': try: locale.setlocale(locale.LC_CTYPE, loc) except locale.Error: # Unsupported locale on this system self.skipTest('test needs %s locale' % loc) re.purge() self.check_en_US_iso88591() self.check_en_US_utf8() re.purge() self.check_en_US_utf8() self.check_en_US_iso88591()
def main(): times = {} html = urllib2.urlopen('http://example.webscraping.com/view/United-Kingdom-239').read() NUM_ITERATIONS = 1000 # number of times to test each scraper for name, scraper in ('Regular expressions', regex_scraper), ('Beautiful Soup', beautiful_soup_scraper), ('Lxml', lxml_scraper): times[name] = [] # record start time of scrape start = time.time() for i in range(NUM_ITERATIONS): if scraper == regex_scraper: # the regular expression module will cache results # so need to purge this cache for meaningful timings re.purge() result = scraper(html) # check scraped result is as expected assert(result['area'] == '244,820 square kilometres') times[name].append(time.time() - start) # record end time of scrape and output the total end = time.time() print '{}: {:.2f} seconds'.format(name, end - start) writer = csv.writer(open('times.csv', 'w')) header = sorted(times.keys()) writer.writerow(header) for row in zip(*[times[scraper] for scraper in header]): writer.writerow(row)
def bench_regex_compile(loops, regexes): range_it = xrange(loops) t0 = perf.perf_counter() for _ in range_it: for regex, flags in regexes: re.purge() # ignore result (compiled regex) re.compile(regex, flags) return perf.perf_counter() - t0
def purge(): re.purge()
def asciiconvert(user_input, enable_spechar=True): """ Converts user-input string into ASCII. Returns a string with ASCII chars only """ SPECHAR_RE = r'[\s.?!:;§*^¨%$\|\[\]\(\)\{\}+=`~\'\"\\&]*' accented_chars = [(r'[àäâ]*', 'a'), (r'[éèëê]*', 'e'), (r'[ìîï]*', 'i'), (r'[òöô]*', 'o'), (r'[ùûü]*', 'u'), (r'[ÿ??]*', 'y')] if not enable_spechar: spechar = re.compile(SPECHAR_RE) ans = spechar.findall(user_input) if ans: # Replacing all occurrences by an empty string user_input = spechar.sub('', user_input, count=0) re.purge() for pattern, repl in accented_chars: accented = re.compile(pattern) # Replacing all occurrences by a non-accented char user_input = accented.sub(repl, user_input, count=0) re.purge() return user_input
def __del__(self): re.purge()
def dash_R_cleanup(fs, ps, pic, zdc, abcs): import gc, copy_reg import _strptime, linecache dircache = test_support.import_module('dircache', deprecated=True) import urlparse, urllib, urllib2, mimetypes, doctest import struct, filecmp from distutils.dir_util import _path_created # Clear the warnings registry, so they can be displayed again for mod in sys.modules.values(): if hasattr(mod, '__warningregistry__'): del mod.__warningregistry__ # Restore some original values. warnings.filters[:] = fs copy_reg.dispatch_table.clear() copy_reg.dispatch_table.update(ps) sys.path_importer_cache.clear() sys.path_importer_cache.update(pic) try: import zipimport except ImportError: pass # Run unmodified on platforms without zipimport support else: zipimport._zip_directory_cache.clear() zipimport._zip_directory_cache.update(zdc) # clear type cache sys._clear_type_cache() # Clear ABC registries, restoring previously saved ABC registries. for abc, registry in abcs.items(): abc._abc_registry = registry.copy() abc._abc_cache.clear() abc._abc_negative_cache.clear() # Clear assorted module caches. _path_created.clear() re.purge() _strptime._regex_cache.clear() urlparse.clear_cache() urllib.urlcleanup() urllib2.install_opener(None) dircache.reset() linecache.clearcache() mimetypes._default_mime_types() filecmp._cache.clear() struct._clearcache() doctest.master = None try: import ctypes except ImportError: # Don't worry about resetting the cache if ctypes is not supported pass else: ctypes._reset_cache() # Collect cyclic trash. gc.collect()
