如何将 Python UUID 转换为字符串？

我必须这么做 能够将 UUID 分配给用户，并在。Txt 文件。我只有这些了:

import uuid


a = input("What's your name?")
print(uuid.uuid1())
f.open(#file.txt)

我试过:

f.write(uuid.uuid1())

但是什么都没有出现，可能是逻辑错误，但是我不知道。

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小开

you can try this !

 a = uuid.uuid1()
str(a)
--> '448096f0-12b4-11e6-88f1-180373e5e84a'
小开

[update] i added str function to write it as string and close the file to make sure it does it immediately,before i had to terminate the program so the content would be write

 import uuid
def main():
a=input("What's your name?")
print(uuid.uuid1())
main()
f=open("file.txt","w")
f.write(str(uuid.uuid1()))
f.close()

I guess this works for me

小开

It's probably because you're not actually closing your file. This can cause problems. You want to use the context manager/with block when dealing with files, unless you really have a reason not to.

with open('file.txt', 'w') as f:
# Do either this
f.write(str(uuid.uuid1()))
# **OR** this.
# You can leave out the `end=''` if you want.
# That was just included so that the two of these
# commands do the same thing.
print(uuid.uuid1(), end='', file=f)

This will automatically close your file when you're done, which will ensure that it's written to disk.

小开

I came up with a different solution that worked for me as expected with Python 3.7.

import uuid


uid_str = uuid.uuid4().urn
your_id = uid_str[9:]

urn is the UUID as a URN as specified in RFC 4122.

小开

You can also do this. Removes the dashes as a bonus. link to docs.

import uuid
my_id = uuid.uuid4().hex

ffba27447d8e4285b7bdb4a6ec76db5c

UPDATE: trimmed UUIDs (without the dashes) are functionally identical to full UUIDS (discussion). The dashes in full UUIDs are always in the same position (article).


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