CODEWITHSUNDEEP
pythonshutil
Abhishek Sharma
Abhishek Sharma

Reputation: 81

shutil.move() throws TypeError: coercing to Unicode: need string or buffer, instance found

I am trying to use shutil.move but getting error as below:

Traceback (most recent call last):
  File "packageTest.py", line 202, in <module>
    writeResult()
  File "packageTest.py", line 92, in writeResult
    shutil.move(tempfile,'report.csv')
  File "/usr/local/lib/python2.7/shutil.py", line 294, in move
    os.rename(src, real_dst)
TypeError: coercing to Unicode: need string or buffer, instance found

I am new to python and not sure what is wrong in this. Can anybody help me in this? I checked even whether i am trying to open the file twice but it is not so.

def writeResult():

    tempfile=NamedTemporaryFile(delete=False)
    result='FAIL'
    with open('report.csv','rb') as infile,tempfile:
            csvreader=csv.DictReader(infile)
            fieldnames=csvreader.fieldnames
            csvwriter=csv.DictWriter(tempfile,fieldnames)
            csvwriter.writeheader()
            for node,row in enumerate(csvreader,1):
                    if(row['EXIST_IN_BOM']=='Yes'):
                            if(row['EXIST_IN_TAR']=='No'):
                                    csvwriter.writerow(dict(row,RESULT='FAIL'))
                                    csvwriter.writerow(dict(row,COMMENT='File is missing in package'))
                            else:
                                    result='PASS'

                    else:
                            if(row['EXIST_IN_TAR']=='Yes'):
                                    csvwriter.writerow(dict(row,RESULT='FAIL'))
                                    csvwriter.writerow(dict(row,COMMENT='File is missing in BOM'))


                    if(row['SIZE_IN_TAR']==row['SIZE_IN_ALPHA']):
                            result='PASS'
                    else:
                            csvwriter.writerow(dict(row,RESULT='FAIL'))
                            csvwriter.writerow(dict(row,COMMENT='File size not same'))
                    if(result=='PASS'):
                            csvwriter.writerow(dict(row,RESULT='PASS'))


    shutil.move(tempfile,'report.csv')
    return

Edit: The below code works though:

    tempfile=NamedTemporaryFile(delete=False)
with open('dict.csv','rb') as infile,tempfile:
        csvreader=csv.DictReader(infile)
        fieldnames=csvreader.fieldnames
        csvwriter=csv.DictWriter(tempfile,fieldnames)
        csvwriter.writeheader()
        for node,row in enumerate(csvreader,1):
                if(row['EmpId']=='119093'):
                        csvwriter.writerow(dict(row,Rank='1'))
                if(row['EmpId']=='119094'):
                        csvwriter.writerow(dict(row,Rank='2'))

shutil.move(tempfile.name,'dict.csv')

Upvotes: 0

Views: 744

Answers (1)

Ignacio Vazquez-Abrams
Ignacio Vazquez-Abrams

Reputation: 798686

shutil.move() takes two filenames, not a file-like and a filename. If you want to copy the contents of a file-like to a filename then open the filename in write mode and use shutil.copyfileobj() instead.

Upvotes: 1

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