CODEWITHSUNDEEP
pythonstringalphanumeric
Ninsa
Ninsa

Reputation: 31

Converting an alphanumeric string into a numeric one in python

I've got an alphanumeric number as a string "4525ABT2", which I'm trying to "translate" to be only a numeric one. I tried many ways, smart as really stupid and long, and looked all over (I found the solution for Java here but it doesn't work in python. Neither does the solution that change all characters to numbers). My last attempt looks like this

for i in alpha:    
        alpha1 = alpha.replace("A" or "B" or "C", "2")
        alpha2 = alpha1.replace("D" or "E" or "F", "3")
        alpha3 = alpha2.replace("G" or "H" or "I", "4")
        alpha4 = alpha3.replace("J" or "K" or "L", "5")
        alpha5 = alpha4.replace("M" or "N" or "O", "6")
        alpha6 = alpha5.replace("P" or "Q" or "R" or "S", "7")
        alpha7 = alpha6.replace("T" or "U" or "V", "8")
        alpha8 = alpha7.replace("W" or "X" or "Y" or "Z", "9")

phone = str(alpha8)
return phone

Thanks in advance!!

Upvotes: 3

Views: 1976

Answers (2)

Zinki
Zinki

Reputation: 446

It would be easier if your replacements were the same size, but this should work:

replist = ["","","ABC", "DEF", "GHI", "JKL", "MNO", "PQRS", "TUV", "WXYZ"]

for i,v in enumerate(replist):
    for l in v:
        alpha = alpha.replace(l,str(i))

Input: "AHK62ZT"

Output: "2456298"

Upvotes: -1

user3850
user3850

Reputation:

Use the proper tool:

>>> s = "4525ABT2"
>>> table = str.maketrans('ABCDEFGHIJKLMNOPQRSTUVWXYZ',
                          '22233344455566677778889999')
>>> s.translate(table)
'45252282'

Upvotes: 5

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