How to write data to a file in Hindi language?

问题

I am trying to write data to a file in a non-roman script using python tkinter. I want to write data to a file in Hindi language which follows the Devanagari Script. While, it is working perfectly alright when I write some data in English, while writing to the file in Hindi language is throwing some errors. How do I resolve this issue?

I tried adding (encoding='utf-8') in filedialog command. Doing this, it gives the following error:

_tkinter.TclError: bad option "-encoding": must be -confirmoverwrite, -defaultextension, -filetypes, -initialdir, -initialfile, -parent, -title, or -typevariable

This error shows up the moment I click the button.Maybe (encoding='utf-8') is not an attribute of filedialog. Following is the relevant part of the code:

def save_file_hindi(event=""):
    data = filedialog.asksaveasfile(mode="w", defaultextension=".html")
    if data is None:
        return

    data.write("एक" + "<br>\n"+ "दो" + "<br>\n")
    data.close()

Expected Result: In the saved HTML file, it should display:

एक

दो

Actual Result: UnicodeEncodeError: 'charmap' codec can't encode characters in position 19-26: character maps to undefined

回答1:

Tried this code and it worked just fine with Python 3.6.5 under Windows 10:

text = """<html><head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head><body>
<p>एक  दो</p>
</body></html>"""

with open('test.html', 'w', encoding='utf8') as file:
    file.write(text)

What is your environment? Have you tried to open the file in different editors and/or browsers?

回答2:

According to the File Dialogs documentation for asksaveasfilename, there is no encding option available. But you can open the file in write mode, specify the encoding as 'utf-8', and write to it later.

import tkinter as tk
from tkinter import filedialog

def Test():        
    root = tk.Tk()

    myFile = filedialog.asksaveasfilename(defaultextension='.html')

    if not myFile:
        return        

    with open(myFile, 'w', encoding='utf-8') as f:
        f.write("एक" + "<br>\n"+ "दो" + "<br>\n")   

    root.mainloop()


Test()

回答3:

I found a very feasible solution to the problem I was facing earlier. So, I am answering my own question as it might turn out handy for anyone who runs into an error similar to mine. The solution shall work for writing to a file in any language that is in a non-roman script (Hindi,Urdu, Chinese, Russian, Arabic etc). The programming environment I am working in is python 3.6.

The only rectifications to the code are-

Change mode='w' to mode='wb', so that the data to be written in file is read in bytes since for any form of encoding, the interpreter must scan the data in bytes.
In the (.write) command line, add encoding in the form of .encode('utf-8'). As, I mentioned in my problem, encode='utf-8' is not an 'attribute' of (filedialog.asksaveasfile). However, it is actually a 'method' and is it be to formulated that way only. So, the new rectified code is-
```
 def save_file_hindi(event=""):
 data = filedialog.asksaveasfile(mode="wb", defaultextension=".html")
 if data is None:
     return

 data.write(("एक" + "<br>\n"+ "दो" + "<br>\n").encode('utf-8'))
 data.close()
```

来源：https://stackoverflow.com/questions/55459768/how-to-write-data-to-a-file-in-hindi-language

标签

python

tkinter

file-handling

filedialog