why py executes the write method in line 2?

Question

i was expecting it to assign that to a variable x and it will do the actual writing only when i call the x. i dont understand... i thought it will be a blank file.

file = open("newfile.txt", "w")
x=file.write("Some new text66776")
print(x)
file.close()

file = open("newfile.txt", "r")
print("Reading new contents")
print(file.read())
print("Finished")
file.close()

Answer 1

The nature of python always executes a function if you give it a variable and x stores the return value of file.write()
if you want to store the function in a variable, do something like:
x = file.write
x("the new text")

Answer 2

great, thank you! :)