python read file
with open("file.txt", "r") as txt_file:
return txt_file.readlines()python read file
with open("file.txt", "r") as txt_file:
return txt_file.readlines()python open file
with open('filename', 'a') as f: # able to append data to file
f.write(var1) # Were var1 is some variable you have set previously
f.write('data')
f.close() # You can add this but it is not mandatory
with open('filename', 'r') as f: # able to read data from file ( also is the default mode when opening a file in python)
with open('filename', 'x') as f: # Creates new file, if it already exists it will cause it to fail
with open('filename', 't') as f: # opens the file in text mode (also is defualt)
with open('filename', 'b') as f: # Use if your file will contain binary data
with open('filename', 'w') as f: # Open file with ability to write, will also create the file if it does not exist (if it exists will cause it to fail)
with open('filename', '+') as f: # Opens file with reading and writing
# You can combine these as you like with the + for reading and writingread file python
document = 'document.txt'
file = open(document, 'r')
# 'r' to read. it can be replaced with:
# 'w' to write (overwrite)
# 'a' to append (add to the end)
# 'w+' makes a new file if one does not already exist of that name
# 'a+' same as 'w+' but appends if the file does exist
# 'x' creates file for writing, but fails if file already exists
##go to beginning of document. not required but good for consistency.
file.seek(0)
##print all lines in document, except empty lines:
for line in file:
k = line.strip()
print k
##close the file after you are done
file.close()
##this also works to open a file, and is more error proof:
with open(document) as filestream:
for i in filestream:
k = i.strip()
print kpython open and read file with
with open('pagehead.section.htm','r') as f:
output = f.read()how to read a file in python
# when you want to read the file from terminal in python use
import sys
f = open(sys.argv[1])
line=f.readline()Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
