如何使用 Python 中的日志记录打印列表项 + 整数/字符串
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/17690057/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How to print list item + integer/string using logging in Python
提问by twfx
I'd like to print list item with the index of item such as
我想打印带有项目索引的列表项目，例如
0: [('idx', 10), ('degree', 0)]
1: [('idx', 20), ('degree', 0)]
Based on the code below, how can I append '0:' as integer + string + list item?
根据下面的代码，我如何将 '0:' 附加为整数 + 字符串 + 列表项？
import logging
class Node(object):
__slots__= "idx", "degree"
def __init__(self, idx, degree):
self.idx = idx
self.degree = 0
def items(self):
"dict style items"
return [
(field_name, getattr(self, field_name))
for field_name in self.__slots__]
def funcA():
a = []
a.append(Node(10, 0))
a.append(Node(20, 0))
for i in range(0, len(a)):
logging.debug(a[i].items())
if __name__ == '__main__':
logging.basicConfig(level=logging.DEBUG)
funcA()
Currently, result is
目前，结果是
DEBUG:root:[('idx', 10), ('degree', 0)]
DEBUG:root:[('idx', 20), ('degree', 0)]
Expecting
期待
DEBUG:root:0:[('idx', 10), ('degree', 0)]
DEBUG:root:1:[('idx', 20), ('degree', 0)]
采纳答案by mr2ert
I would do it like this.
我会这样做。
def funcA():
a = []
a.append(Node(10, 0))
a.append(Node(20, 0))
for i in range(0, len(a)):
message = '%s:%s' % (i, a[i].items())
logging.debug(message)
Which produces this as output:
产生这个作为输出：
DEBUG:root:0:[('idx', 10), ('degree', 0)]
DEBUG:root:1:[('idx', 20), ('degree', 0)]
You could also use join:
您还可以使用 join：
message = ':'.join([str(i), str(a[i].items())])
Or format:
或格式：
message = '{0}:{1}'.format(str(i), a[i].items())
Whatever is the most clear to you.
什么对你来说都是最清楚的。
