Renaming file: 'str' Object has no attribute 'group'

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I’m having a problem that may be quite trivial but I’m not getting it. I found in a text by regular expression a numerical sequence of type XXXX/YYYY, after that I need to rename the file . txt with the sequence found. The problem is that when trying to rename the file python returns an error because it cannot rename a file that has a "/". 

    import os
    import re
    import random
    import string


    # Endereco da pasta em que os documentos se encontram
    path_txt = (r'''C:\Users\mateus.ferreira\Desktop\TXT''')

name_files = os.listdir(path_txt)

for TXT in name_files:
    with open(path_txt + '\\' + TXT, "r") as content:
        search = re.search(r'(([0-9]{4})(/)(([1][9][0-9][0-9])|([2][0-9][0-9][0-9])))', content.read())
        search = str(search)
        search = search.replace("/","")
    if search is not None:
        os.rename(os.path.join(path_txt, TXT),
                  os.path.join("Processos3", search.group(0) + "_" + str(random.randint(100, 999)) + ".txt"))

I tried to use the replace function but it’s giving some error that I’m not understanding why:

      File "C:/Users/mateus.ferreira/PycharmProjects/untitled/classificador_reclamante.py", line 50, in <module>
    os.path.join("Processos3", search.group(0) + "_" + str(random.randint(100, 999)) + ".txt"))
AttributeError: 'str' object has no attribute 'group'

when I do a print after replace it returns:

<_sre.SRE_Match object; span=(7449, 7458), match='82121991'>

ie match='82121991', shows that to remove the bar replace worked

python python-3.x

  • Why did you convert the search for string in search = str(search)? This doesn’t make much sense. If you need to remove the bar, you should do this after capturing the value of the group with search.group.

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You are converting the function return search for string meaningless.

for TXT in name_files:
    with open(path_txt + '\\' + TXT, "r") as content:
        search = re.search(r'(([0-9]{4})(/)(([1][9][0-9][0-9])|([2][0-9][0-9][0-9])))', content.read())
        search = str(search)
        search = search.replace("/","")
    if search is not None:
        os.rename(os.path.join(path_txt, TXT),
                  os.path.join("Processos3", search.group(0) + "_" + str(random.randint(100, 999)) + ".txt"))

It is even working with the value of search even before checking whether it is null or not. If the intention is to remove the bars from the value sought by the regular expression, first you must capture the group and only then replace, not the other way around, as you did.

It would be something like:

with open(path_txt + '\\' + TXT, "r") as content:
    search = re.search(r'(([0-9]{4})(/)(([1][9][0-9][0-9])|([2][0-9][0-9][0-9])))', content.read())
    if search is not None:  # Verifica se o valor foi encontrado
        name = search.group(0)  # Captura o valor do grupo
        name = name.replace('/', '')  # Substitui a barra
        os.rename(...)  # Renomeia utilizando o valor de `name`

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