Concatenation two files in python

Question

I have the following functions to read files, then store them inside variables:

def browseFiles():
    filename = filedialog.askopenfilename(initialdir = "/home",
                                          title = "Select a File",
                                          filetypes = (("Text files",
                                                        "*.docx*"),
                                                       ("all files",
                                                        "*.*")))
    label_file_explorer.configure(text="File Opened: "+ filename)
    with open(filename) as fp:
     firstfile = fp.read()

def browseFiles1():
    filename1 = filedialog.askopenfilename(initialdir = "/home",
                                          title = "Select a File",
                                          filetypes = (("Text files",
                                                        "*.docx*"),
                                                       ("all files",
                                                        "*.*")))
    label_file_explorer.configure(text="File Opened: "+ filename1)
    with open(filename1) as fp:
     secondfile = fp.read()

I want to concatenate firstfile and secondfile together, then produce a third file. So, I used :

firstfile += "\n"
firstfile += secondfile
  
with open ('thirdfile.docx', 'w') as fp:
    fp.write(firstfile)

My questions is how to access the variables firstfile and secondfile in each function and use them to produce a third file ?

It is better to open the file in binary mode if it is a `.docx` file. But note that merging two `.docx` files is not the same as merging two text files. — acw1668, May 04 '22 at 10:41
Good point. Any link to opening a file in a binary mode would be helpful. — Yahyaotaif, May 04 '22 at 13:34

lowkey · Accepted Answer · 2022-05-06T04:33:43.753

1

You have to return the firstfile and the secondfile from the 2 functions, store them in variables and then use the pd.concat function.

def browseFiles():
    filename = filedialog.askopenfilename(initialdir = "/home",
                                          title = "Select a File",
                                          filetypes = (("Text files",
                                                        "*.docx*"),
                                                       ("all files",
                                                        "*.*")))
    label_file_explorer.configure(text="File Opened: "+ filename)
    with open(filename) as fp:
     firstfile = fp.read()

    return firstfile


def browseFiles1():
    filename1 = filedialog.askopenfilename(initialdir = "/home",
                                          title = "Select a File",
                                          filetypes = (("Text files",
                                                        "*.docx*"),
                                                       ("all files",
                                                        "*.*")))
    label_file_explorer.configure(text="File Opened: "+ filename1)
    with open(filename1) as fp:
     secondfile = fp.read()
    
    return secondfile

firstfile = browseFiles()
secondfile = browseFiles1()

thirdfile = pd.concat([firstfile, secondfile])

Here is the link to the documentation of concat.

Cheers!

edited May 06 '22 at 04:33

answered May 04 '22 at 03:54

lowkey

140
10

1

So your solution to accessing two variables involves installing a 3rd party library? – Delrius Euphoria May 04 '22 at 04:02
@DelriusEuphoria What do you think would be the right solution ? – Yahyaotaif May 04 '22 at 13:33
@Yahyaotaif Global variables seems like a solution, but I'm not sure what the OP wants – Delrius Euphoria May 04 '22 at 15:51
@DelriusEuphoria that would be my last resort. – Yahyaotaif May 04 '22 at 16:21
lowkey, I get an error at this line thirdfile = pd.concat([firstfile, secondfile]) where firstfile and secondfile are not regonized. – Yahyaotaif May 04 '22 at 16:22
@Yahyaotaif I dont know why you want to add all the files together – Delrius Euphoria May 04 '22 at 16:25
@DelriusEuphoria it is a mini project I'm working on for my employer where we receive multiple docx files from different sources and we need to have them in one file for ease of use. – Yahyaotaif May 04 '22 at 20:03
@Yahyaotaif If you are trying to combine two files, are you sure the right way to combine it is like this? – Delrius Euphoria May 04 '22 at 21:45
I don't know any other way in python. – Yahyaotaif May 04 '22 at 22:44
1

@DelriusEuphoria I found a library in python that does the merging, it is called docxcompose. – Yahyaotaif May 04 '22 at 23:10
@Yahyaotaif What kind of error is it? – lowkey May 05 '22 at 09:45
@Iowkey name 'firstfile' is not defined – Yahyaotaif May 05 '22 at 11:23
@Yahyaotaif I have edited the code. It will work now – lowkey May 05 '22 at 11:41
Typo: `BrowseFile1()` should be ` browseFile1()` instead. BTW, can `pd.concat()` merge two `.docx` files actually? – acw1668 May 05 '22 at 14:11
@acw1668 Thanks bud! AFAIK concat is only for dataframes. For Word files there is another library. https://stackoverflow.com/questions/24872527/combine-word-document-using-python-docx this might help – lowkey May 06 '22 at 04:34

score 0 · Answer 2 · answered May 04 '22 at 03:50

0

You can return the file contents from the two functions, and that's how you'll access both from your "main function".

answered May 04 '22 at 03:50

fireshadow52

6,298
2
30
46

Thats prolly not possible assuming the functions are callbacks triggered by a button, and `return` inside callbacks are quite useless – Delrius Euphoria May 04 '22 at 04:03

Concatenation two files in python

2 Answers2