如何使用Python从文件中读取API身份验证数据？

Question

I am having trouble with a "Bad Authentication" error when reading my API keys from a file as such:

#!/usr/local/bin/python
import tweepy

#open a file called "keys" with keys and tokens for Twitter separated by newlines
keyFile = open('keys', 'r')
consumer_key = keyFile.readline()
consumer_secret = keyFile.readline()
access_token = keyFile.readline()
access_token_secret = keyFile.readline()
keyFile.close()
print "consumer key: " + consumer_key
print "consumer secret: " + consumer_secret
print "access token: " + access_token
print "access token secret: " + access_token_secret

auth = tweepy.OAuthHandler(consumer_key, consumer_secret)
auth.set_access_token(access_token, access_token_secret)

If I manually set my keys, like with consumer_key = "xxx" , it works fine. Any tips on why is doesn't work when reading from file? Thanks.

Answer 1

So it turns out Python was reading the newline characters as well. The solution was to strip the hidden characters with rstrip():

consumer_key = keyFile.readline().rstrip()

Answer 2

keys.txt file has 4 lines including consumer_key , consumer_secret , access_token and access_token_secret each separately in a line so we first read all the lines in the keys.txt file with readlines method. We would need to use .rstrip() in order to remove the unwanted \\n from end of each string (or other possible unwanted characters). It is a good practice to keep these information in keys.txt file and add the name of keys.txt file in .gitignore when pushing your project to GitHub so that others won't hack your account when you push your code to GitHub .

keys_file = open("keys.txt")
lines = keys_file.readlines()
consumer_key = lines[0].rstrip()
consumer_secret = lines[1].rstrip()
access_token = lines[2].rstrip()
access_token_secret = lines[3].rstrip()