Python odczyt linia plików według linii
with open("file.txt") as file_in:
lines = []
for line in file_in:
lines.append(line)
Caleb McNevin
with open("file.txt") as file_in:
lines = []
for line in file_in:
lines.append(line)r for reading
r+ opens for reading and writing (cannot truncate a file)
w for writing
w+ for writing and reading (can truncate a file)
rb for reading a binary file. The file pointer is placed at the beginning of the file.
rb+ reading or writing a binary file
wb+ writing a binary file
a+ opens for appending
ab+ Opens a file for both appending and reading in binary. The file pointer is at the end of the file if the file exists. The file opens in the append mode.
x open for exclusive creation, failing if the file already exists (Python 3)f = open('filename.txt', 'r') #open for reading (default)
f = open('filename.txt', 'w') #open for writing, truncating the file first
f = open('filename.txt', 'x') #open for exclusive creation, failing if the file already exists
f = open('filename.txt', 'a') #open for writing, appending to the end of the file if it exists
#there are many modes you can open files in. r means read.
file = open('C:\Users\yourname\files\file.txt','r')
text = file.read()
#you can write a string to it, too!
file = open('C:\Users\yourname\files\file.txt','w')
file.write('This is a typical string')
#don't forget to close it afterwards!
file.close()fin = open("NAME.txt", 'r')
body = fin.read().split("\n")
line = fin.readline().strip()with open("filename.txt", "w") as file:
file.write("new line in new/now cleared document")
with open("filename.txt", "a") as file:
file.write("This line is added to the now 2 line document")
with open("filename.txt", "r") as file:
lines = file.readlines() # ["new line in new/now cleared document\n", "This...