Encoding large file(500MB+) to base64 in python

Question

I am trying to base64 encode a large exe file which is around 500 MB and while doing it i am getting this error:

F:\python\waft>python count.py
Traceback (most recent call last):
  File "count.py", line 10, in <module>
    encodedZip = base64.b64encode(f.read())
  File "C:\Users\rohan-pc\AppData\Local\Programs\Python\Python38-32\lib\base64.py", line 58, in b64encode
    encoded = binascii.b2a_base64(s, newline=False)
MemoryError

This is the code i wrote to generate base64 from exe. I did some research and got to know that there are some memory limitation but is there any other way that i can encode larger files..?

with open("test.exe", "rb") as f:
    encodedZip = base64.b64encode(f.read())

Answer 1

After doing some research i got the answer the following code works :

fr = open("test.exe", 'rb')

i = 1
while True:
    piece = fr.read(75232000)
    if not piece:
        break
    fw = open(str(i), 'wb')
    fw.write(base64.b64encode(piece))
    fw.close()
    i += 1
fr.close()