remove last line of text file python

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Anna
19 Apr 2017
1fd=open("file.txt","r")
2d=fd.read()
3fd.close()
4m=d.split("\n")
5s="\n".join(m[:-1])
6fd=open("file.txt","w+")
7for i in range(len(s)):
8    fd.write(s[i])
9fd.close()
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