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要求用戶輸入文件以使用 python 運行程序

[英]ask user enter a file to run the program with python

我有一個程序可以連接文本中用星號分隔的法語單詞。 因為我想讓這個程序被不同的用戶使用,所以我想在程序中插入一行,要求用戶輸入文本文件的路徑或者簡單地輸入文本的名稱......怎么做? 只使用函數“輸入”? 我不知道……有沒有一種優雅的方式讓用戶運行程序? 該程序如下:

import nltk
from nltk.tokenize import word_tokenize
import re



with open ('text-test.txt') as tx:
   words = word_tokenize(tx.read().lower())

with open ('Fr-dictionary.txt') as fr:
    dic = word_tokenize(fr.read().lower())

l=[ ]
errors=[ ]
out_file=open("newtext.txt","w")

for n,word in enumerate (words):
    l.append(word)
    if word == "*":
        exp = words[n-1] + words[n+1]
        print("\nconcatenation error:", exp)

        if exp in dic:

            l.append(exp)
            l.append("$")

            errors.append(words[n-1])

            errors.append(words[n+1])
        else:
           continue

for i, w in enumerate(l):
    if w == "*":
        l.remove(l[i-1])
    else:
        continue

for i, w in enumerate(l):
    if w == "$":
        l.remove(l[i+1])
    else:
        continue


text=' '.join(l)
print('\n\n',text)
e=len(errors)

print('\n',e/2,'WORDS CONCATENATED IN TEXT',errors)


user=input('\nREMOVE * AND $ FROM TEXT? Type "Y" for yes or "N" for 
no:')


for x in l:
    if user=='Y' and x=='*':
        l.remove(x)
    elif user=='Y' and x=='$':
        l.remove(x)
    else:
        continue


final_text=' '.join(l)

print('\n\n', final_text)


user2=input('\nWrite text to a file? Type "Y" for yes or "N" for no:')

if user2 =='Y':
    out_file.write(final_text)
    out_file.close()
    print('\nText named "newtext.txt" written to a file')

您可以按自己喜歡的方式進行操作,但讓用戶寫出文件的完整路徑既乏味又容易出錯。 您可以做的是擁有一個“監視文件夾”。 這是您的腳本已經知道的文件夾,甚至可能與您的腳本位於同一文件夾中。

一個小例子:

import os
import sys

# This prints the folder where the script is run.
script_directory = os.path.dirname(sys.argv[0])
print(script_directory)

# This is the folder we want to keep track off
our_watched_folder = f'{script_directory}/watch_folder'
print(our_watched_folder)

# Let's see if a user dropped a new file in our folder
print("Files in watch folder")
for file in os.listdir(our_watched_folder):
    print(file)

輸出:

C:/your_script_folder/
C:/your_script_folder/watch_folder
Files in watch folder
a_new_text_file.txt
some_old_textfile1.txt
some_old_textfile2.txt
from pathlib import Path
data_folder = Path(str(input("type the path you would like to use")))
file_to_open = data_folder / str(input("insert the file you would like to use with its extension"))
f = open(file_to_open)

如果您不想使用完整路徑而只想使用位於腳本位置的本地文件,您只需要詢問用戶其名稱並直接使用f = open(filename)打開它。

注意:如果您想知道為什么file_to_open有一個/而不是字符串連接+ 解釋了原因。

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