在撰写“灰色”模块时,如果该模块正在进口或重新装上,是否有办法加以说明?
我知道我可以设立一个班级,init__()将只要求第一个进口,但我登上了制造一个班子的计划。 虽然如此,如果我们进口或重载,我会很容易告诉我们。
The documentation for reload() actually gives a code snippet that I think should work for your purposes, at least in the usual case. You d do something like this:
try:
reloading
except NameError:
reloading = False # means the module is being imported
else:
reloading = True # means the module is being reloaded
实际情况是,是否正在“清白”进口该模块(例如首次进口)或超标同一单元的前例。 在正常情况下,“核”进口与<编码> 进口<>/编码>表相对应,而“dirty”进口与reload(<>相应,因为<编码> 进口<> 仅实际进口单元一次,第一次安装(每个模块)。
如果您能够将随后的《<编码>进口声明》付诸实践,或者如果您能够第一次利用<代码>reload(<>reload(<><>>)进口你的模块,或者在进口机制周围(通过<imp/code>)使用你。 所有的灯塔都关闭。 换言之,在一切可能的情况下,不依赖
P.S. 你再次问这个问题,这使我很想知道,你是否重新做过你可能应该做的事情,但我还是问了。
>>> import os
>>> os.foo = 5
>>> os.foo
5
>>> import os
>>> os.foo
5
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