[英]How to format minutes/seconds with Python?
I want to take the time that some operations need; 我想花点时间进行一些操作。 so I wrote:
所以我写道:
def get_formatted_delta(start_time):
seconds = ( datetime.datetime.now() - start_time ).total_seconds()
m, s = divmod(seconds, 60)
min = '{:02.0f}'.format(m)
sec = '{:02.4f}'.format(s)
return '{} minute(s) {} seconds'.format(min, sec)
but when I run that; 但是当我运行它时; I get printouts like:
我得到如下打印输出:
00 minute(s) 1.0010 seconds 00分钟1.0010秒
Meaning: as expected, 0 minutes are showing up as "00". 含义:如预期的那样,0分钟显示为“ 00”。 But 1 seconds shows up as 1.xxxx - instead of 01.xxxx
但是1秒显示为1.xxxx-而不是01.xxxx
So, what is wrong with my format specification? 那么,我的格式规范怎么了?
The field width applies to the whole field including the decimals and the decimal point. 字段宽度适用于整个字段,包括小数点和小数点。 For 4 decimals plus the point, plus 2 places for the integer portion, you need 7 characters:
对于4个小数加点,再加上2个整数部分,您需要7个字符:
>>> format(1.001, '07.4f')
'01.0010'
You don't need to format those floats separately, you can do all formatting and interpolation in one step: 您不需要分别格式化这些浮点数,可以一步完成所有格式化和插值操作:
def get_formatted_delta(start_time):
seconds = ( datetime.datetime.now() - start_time ).total_seconds()
m, s = divmod(seconds, 60)
return '{:02.0f} minute(s) {:07.4f} seconds'.format(m, s)
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