TypeError: coercing to Unicode: need string or buffer

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This code returns the following error message:

  • with open (infile, mode='r', buffering=-1) as in_f, open (outfile, mode='w', buffering=-1) as out_f: TypeError: coercing to Unicode: need string or buffer, file found 

    # Opens each file to read/modify
infile=open('110331_HS1A_1_rtTA.result','r')
outfile=open('2.txt','w')

import re

with open (infile, mode='r', buffering=-1) as in_f, open (outfile, mode='w', buffering=-1) as out_f:
    f = (i for i in in_f if i.rstrip())
    for line in f:
        _, k = line.split('\t',1)
        x = re.findall(r'^1..100\t([+-])chr(\d+):(\d+)\.\.(\d+).+$',k)
        if not x:
            continue
        out_f.write(' '.join(x[0]) + '\n')

Please someone help me.

typeerror python string
4 Answers

Here is the best way I found for Python 2: 

def inplace_change(file,old,new):
        fin = open(file, "rt")
        data = fin.read()
        data = data.replace(old, new)
        fin.close()

        fin = open(file, "wt")
        fin.write(data)
        fin.close()

An example:

inplace_change('/var/www/html/info.txt','youtub','youtube')
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