I cannot understand this code?? Why the output is 12?!!

Question

https://code.sololearn.com/cXjj9MDIbVV7/?ref=app

Answer 1

The amount_written variable receives number of bytes (characters, letters or symbols) written into the file, count how many characters there is in "Hello world!" including space, and you'll understand why it shows 12.

You should use print(msg) if you want to see "Hello world!" on screen.

Hth, cmiiw

Answer 2

the size of the word written in the file as space and characters are counted

Answer 3

could you kindly please take a look at "write" specifocation and ask that question again?

Answer 4

#store message
msg = "Hello world!"
#open output file
file = open("newfile.txt", "w")
#write the hello world message to the file
#get the number of characters written
amount_written = file.write(msg)
#print the number of characters written
print(amount_written)
#close the file
file.close()

Answer 5

The variable you are printing is set to the file.write function return. That function always returns the number of characters it writes.

Answer 6

if you want to get the data written in the file you can use with ... as to read the file and store the data in a variable

Answer 7

I forgot that Python documentstion is a piece of :v
Here, from StackOverflow:
If, instead, you opened the file in text mode, e.g. f = open(filename, 'w')then f.write() expects a str object, and will return the number of characterswritten, which for multi-byte encodings such as UTF-8 may not match the number of bytes written.

Answer 8

but why it the output isnot
Hello world!
?!!

Answer 9

I took a look on it
but I didnot understand

Answer 10

Ok but why it prints the lenght and I didnot use len()