python的“.format”功能

问题描述

最近，我发现''。格式函数非常有用，因为它可以提高可读性与％格式化。
尝试实现简单的字符串格式：

Recently, I found ''.format function very useful because it can improve readability a lot comparing to the % formatting.Trying to achieve simple string formatting:

data = {'year':2012, 'month':'april', 'location': 'q2dm1'}

year = 2012
month = 'april'
location = 'q2dm1'
a = "year: {year}, month: {month}, location: {location}"
print a.format(data)
print a.format(year=year, month=month, location=location)
print a.format(year, month, location)

， something = something 看起来很丑，但这只是一个例子），最后一个会提高 KeyError：'year' 。
python是否有任何技巧来创建字典，所以它会自动填充键和值，例如 somefunc（年，月，位置）将输出 {'year'：year，'month'：month，'location'：location} ？

Whilst two first prints do format as I expect (yes, something=something looks ugly, but that's an example only), the last one would raise KeyError: 'year'.Is there any trick in python to create dictionary so it will automatically fill keys and values, for example somefunc(year, month, location) will output {'year':year, 'month': month, 'location': location}?

我很新到python，找不到任何关于这个话题的信息，但是这样的技巧会大大改善和缩小我目前的代码。

I'm pretty new to python and couldn't find any info on this topic, however a trick like this would improve and shrink my current code drastically.

提前感谢，赦免我的英文。

Thanks in advance and pardon my English.

推荐答案

第一个打印应该是

print a.format(**data)

另外，如果你找到一些捷径，你可以写一个没有什么大的区别。

Also, if you are finding some shortcuts, you could write one like, no big difference.

def trans(year, month, location):
    return dict(year=year, month=month, location=location)

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