) S.split([sep [,maxsplit]]) -> list of strings #sep为分隔符,默认为空格 最大分隔次数 Return a list of the words in the string S, using sep as the delimiter string. If maxsplit is given, at most maxsplit splits are done. If sep
Now we'll want to do something similar with our IP address in order to parse each octet individually: addr = addrString.split('.') This time we're using a period as a delimiter and using addr to store our list of octets. But there's one problem. We have a bunch of strings. We'...
/usr/bin/env python """ Module docstring. """ import sys import optparse def process_command_line(argv): """ Return a 2-tuple: (settings object, args list). `argv` is a list of arguments, or `None` for ``sys.argv[1:]``. """ if argv is None: argv = sys.argv[1:] # in...
# Split a string into a list of space/tab-separated words def rsplit(s, sep=None, maxsplit=-1): """rsplit(s [,sep [,maxsplit]]) -> list of strings Return a list of the words in the string s, using sep as the delimiter string, starting at the end of the string and working...
parser.parse_args(['--sum', '7', '-1', '42']) 1. 这个是解析参数,由于在交互模式下,通过列表进行传参。 Namespace(accumulate=<built-in function sum>, integers=[7, -1, 42]) 1. 返回的结果。由于输入了--sum,所以执行了action,输出const ...
xml.sax.make_parser([parser_list]) Create and return a SAX XMLReader object. The first parser found will be used. If parser_list is provided, it must be a sequence of strings which name modules that have a function named create_parser(). Modules listed in parser_list will be used befo...
MODEL_FILE= MODEL_NAME + '.tar.gz'DOWNLOAD_BASE= 'http://download.tensorflow.org/models/object_detection/'# Path tofrozen detection graph. This is the actual model that is used for the objectdetection.PATH_TO_FROZEN_GRAPH= MODEL_NAME + '/frozen_inference_graph.pb'# List ofthe strings ...
import json string = '["apple", "banana", "cherry"]' list_of_fruits = json.loads(string) print(list_of_fruits) # Output: ['apple', 'banana', 'cherry'] Copy Comparison of Methods MethodUse CasePerformance split() Simple delimited strings Fast List Comprehension Character-by-character co...
file_object.writelines(list_of_text_strings) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 注意,调用writelines写入多行在性能上会比使用write一次性写入要高。 在处理日志文件的时候,常常会遇到这样的情况:日志文件巨大,不可能一次性把整个文件读入到内存中进行处理,例如需要在一台物理内存为 2GB 的...
order that the key and value pairs aredecoded(forexample,collections.OrderedDict will remember the orderofinsertion).If``object_hook``is also defined,the``object_pairs_hook``takes priority.``parse_float``,ifspecified,will be calledwiththe stringofeveryJSONfloat to be decoded.Bydefaultthisis equi...