A universally unique identifier (UUID) is an identifier standard used in software construction, standardized by the Open Software Foundation (OSF) as part of the Distributed Computing Environment (DCE). Check here for more details.
I recently faced a scenario where I need to use string format of the UUID value. I searched in google and could not find proper answer. Finally I got the solution and here it is. After Creating a UUID, we can get different different values depending on the format. For example, we can get int, hex and byte values of UUID. Similarly using urn (Uniform resource name), we can get the string value of the UUID as shown below.
>>> uid = uuid.uuid1() #creating UUID
>>> uid
UUID('52f8e1ba-e3ac-11e3-8232-a82066136178')
>>> uid.int #int format of UUID
110288963624339905056441828728831697272L
>>> uid.hex #hexa format of UUID
'52f8e1bae3ac11e38232a82066136178'
>>> uid.bytes #bytes format of UUID
'R\xf8\xe1\xba\xe3\xac\x11\xe3\x822\xa8 f\x13ax'
>>> uid.urn #uniform resource name
'urn:uuid:52f8e1ba-e3ac-11e3-8232-a82066136178'
>>>
From the above example uid.urn returns string value 'urn:uuid:52f8e1ba-e3ac-11e3-8232-a82066136178'. But we need only value and we dont need first nine characters 'urn:uuid:', so we can skip those 9 characters to get the string value as shown below.
>>> uid_str = uid.urn >>> str = uid_str[9:] >>> str '52f8e1ba-e3ac-11e3-8232-a82066136178' >>>
Happy Coding!!!
7 comments:
simply
str(uid)
is enough
Thanks Alex for simple way to get uid in string format.
I felt off my chain just reading this, you manually trip characters from a string? Just use str function, it totally works
here is sample even with JSONpretty dump added
import uuid
import json
mydict = { "myuuid" : str(uuid.uuid1()) }
json.dumps(mydict)
I get this:
b'\xf43\x97\x17\xcc\x17\xaeD\xaa\xe7=M\x16\xbe\x1d\xb0'
when I query Oracle in Python 3 it for field that is a guid. The actual GUID looks should be this:
F4339717CC17AE44AAE73D4D16BE1DB0
From this post it seems I should be able to do this:
str('\xf43\x97\x17\xcc\x17\xaeD\xaa\xe7=M\x16\xbe\x1d\xb0')
to get back to the original. But what I get is this:
WÕxueEŒ /¿ v
Which is not useful at all.
Any thoughts?
Thanks dude for this. Helped me out.
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