PYTHON

python read file

with open("file.txt", "r") as txt_file:
  return txt_file.readlines()

how to read a file in python

# How to read, and print to the screen a file in python!

f = open('fileName', 'r')
print(f.read())
f.close()

# Where "fileName" is obviously the name of your file that you want to read.

python read file

txt = open('FILENAME.txt')
txtread = txt.read()
print(txtread)
print(txt.read())

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 writing

python open file

fileName = "file_name.txt" #Here you need to write the file name as a string

openLike = "" #Here you need to write how do you want to open the file:
#"w": Write, "r": Read
openedFile = open("file_name.txt", openLike) #Here you open the file
fileText = openedFile.read() #This read all the file
openedFile.close() #Close the file
print(fileText) # Prints the file text

python read file

with open('readme.txt') as f:
    lines = f.readlines()
Code language: Python

read file in python

f = open("file_name", "r")
print(f.read())

open and read a file in python

my_file = open("C:UsersPythonfile.txt", "r")
#Give the path accurately and use 
text = my_file.read()
print(text)

#Output: The text in file.txt will be printed

python file reading

fin = open("NAME.txt", 'r')
body = fin.read().split("
")
line = fin.readline().strip()

python open and read file with

with open('pagehead.section.htm','r') as f:
    output = f.read()

read a file in python

lines = []
with open('the-zen-of-python.txt') as f:
    lines = f.readlines()

count = 0
for line in lines:
    count += 1
    print(f'line {count}: {line}')    
Code language: JavaScript (javascript)

python read file

l_a=[]
l_m=[]
l_w=[]
with open("spots.txt","r") as file:
    line=file.readlines()
    for i in range(0,len(line),1):
        [a,m,w]=line[i].split()
        l_a.append(float(a))
        l_m.append(float(m))
        l_w.append(float(w))

python read file

l_a=[]
l_m=[]
l_w=[]
with open("spots.txt","r") as file:
    line=file.readlines()
    for i in range(0,len(line),1):
        [a,m,w]=line[i].split()
        l_a.append(float(a))
        l_m.append(float(m))
        l_w.append(float(w))

read a file python

# read, write, close a file
# catch error if raise
try:
    file = open("tryCatchFile.txt","w") 
    file.write("Hello World")

    file = open("tryCatchFile.txt", "r")
    print(file.read())
except Exception as e:
    print(e)
finally:
    file.close()

python read file

l_a=[]
l_m=[]
l_w=[]
with open("spots.txt","r") as file:
    line=file.readlines()
    for i in range(0,len(line),1):
        [a,m,w]=line[i].split()
        l_a.append(float(a))
        l_m.append(float(m))
        l_w.append(float(w))

how to read files in python with

def file_reader(file):
    with open(file,'r') as infile:
        table = [row for row in infile]
    return table
print(file_reader('file.txt'))

Open file with python

import os
my_computer = os.startfile("C:") # here c drive open this variable
print(my_computer)

Reading from a file in python

# write data in a file.
file1 = open("SofthuntFile1.txt","w")
multiple_string = ["This is Mango 
","This is Apple 
","This is Banana 
"]

# 
 is placed to indicate EOL (End of Line)
file1.write("Hello 
")
file1.writelines(multiple_string)
file1.close() #to change file access modes

file1 = open("SofthuntFile1.txt","r+")

print("Output of Read function is ")
print(file1.read())
print()

# seek(n) takes the file handle to the nth
 bite from the beginning.
file1.seek(0)

print( "Output of Readline function is ")
print(file1.readline())
print()

file1.seek(0)

# To show difference between read and readline
print("Output of Read(9) function is ")
print(file1.read(9))
print()

file1.seek(0)

print("Output of Readline(9) function is ")
print(file1.readline(9))

file1.seek(0)
# readlines function
print("Output of Readlines function is ")
print(file1.readlines())
print()
file1.close()

read a file python

api_key = open(r'path/sanbox_api.txt').read()

open file in python

import os

os.system('filename.extension')

Reading Files in Python

>>> f = open("test.txt",'r',encoding = 'utf-8')
>>> f.read(4)    # read the first 4 data
'This'

>>> f.read(4)    # read the next 4 data
' is '

>>> f.read()     # read in the rest till end of file
'my first file
This file
contains three lines
'

>>> f.read()  # further reading returns empty sting
''

python read file

l_a=[]
l_m=[]
l_w=[]
with open("spots.txt","r") as file:
    line=file.readlines()
    for i in range(0,len(line),1):
        [a,m,w]=line[i].split()
        l_a.append(float(a))
        l_m.append(float(m))
        l_w.append(float(w))

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()

python read file

with open("file.txt", "r") as txt_file:
  return txt_file.read()