easy but difficult

[Beema shafreen]

hi everybody,
  I have  a file  separated by hash:
as shown below,
file:
A#1
B#2
A#2
A#3
B#3

I need the result like this:
A 1#2#3
B 2#3

how will generate the result like this from the above file
can somebody tell me what i have to do......
My code:
          fh =open('abc_file','r')
          for line in fh.readlines():
                   data = line.strip().split('#')
                    for data[0] in line
                            print line

I tried but i donot know how to create 1#2#3 in a single line
regards
shafreen
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