import asyncio from gino import Gino db = Gino() class User(db.Model): __tablename__ = 'users' id = db.Column(db.Integer(), primary_key=True) nickname = db.Column(db.Unicode(), default='noname') async def main(): await db.set_bind('postgresql://localhost/gino') await db.gino...
If base is 0, it 400 is chosen from the leading characters of s, 0 for octal, 0x or 401 0X for hexadecimal. If base is 16, a preceding 0x or 0X is 402 accepted. 403 404 """ 405 return _int(s, base) 406 407 408 # Convert string to long integer 409 def atol(s, base=10)...
parse(format_string )循环遍历format_string并返回一个可迭代的元组(literal_text,field_name,format_spec,conversion)。这用于vformat()将字符串分解为文字文本或替换字段。 元组中的值在概念上表示文字文本的范围,后跟单个替换字段。如果没有文字文本(如果连续出现两个替换字段会发生这种情况),则 literal_text将是一...
>>>parse("I am {:d}","I am 27")<Result (27,) {}>>>type(_[0])<type 'int'>>> 其等价于 >>>defmyint(string):...returnint(string)...>>>parse("I am {:myint}","I am 27",dict(myint=myint))<Result (27,) {}>>>type(_[0])<type 'int'>>> 利用它,我们可以定制很多的...
allKeys) { if ([k isEqualToString:@"subViews"]) { NSMutableArray *array = [NSMutableArray array]; for (NSUInteger i = 0; i < [dic[k] count]; i++) { [array addObject:[self dumpString:[dic[k][i] UTF8String]]]; } dic[k] = [array copy]; } } NSLog(@"dumpInfo❄️...
sftp://[username[:password]@]hostname[:port]/path Download files using HTTP http://hostname[:port]/path Args: url: URL of remote file local_path: local path to put the file Returns: A integer of return code """ url_tuple = urlparse(url) print_ztp_log(f"Download {url_tuple.path...
'_match_arguments_partial', '_mutually_exclusive_groups', '_negative_number_matcher', '_option_string_actions', '_optionals', '_parse_known_args', '_parse_optional', '_pop_action_class', '_positionals', '_print_message', '_read_args_from_files', '_registries', '_registry_get', '...
1、自动化office，包括对excel、word、ppt、email、pdf等常用办公场景的操作，python都有对应的工具库，...
def ordinal_encoder(my_array): integer_encoded = label_encoder.transform(my_array) float_encoded = integer_encoded.astype(float)float_encoded[float_encoded == 0] = 0.25 # A float_encoded[float_encoded == 1] = 0.50 # C float_encoded[float_encoded == 2] = 0.75 # G float_encoded[...
本文将从Python生态、Pandas历史背景、Pandas核心语法、Pandas学习资源四个方面去聊一聊Pandas,期望能给答主一点启发。 一、Python生态里的Pandas 五月份TIOBE编程语言排行榜,Python追上Java又回到第二的位置。Python如此受欢迎一方面得益于它崇尚简洁的编程哲学,另一方面是因为强大的第三方库生态。 要说杀手级的库,很难...