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()read 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 file
def main():
f= open("guru99.txt","w+")
#f=open("guru99.txt","a+")
for i in range(10):
f.write("This is line %drn" % (i+1))
f.close()
#Open the file back and read the contents
#f=open("guru99.txt", "r")
#if f.mode == 'r':
# contents =f.read()
# print (contents)
#or, readlines reads the individual line into a list
#fl =f.readlines()
#for x in fl:
#print(x)
if __name__== "__main__":
main()Copyright © 2021 Codeinu
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