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# This is a "demo" of win32file - it used to be more a test case than a
# demo, so has been moved to the test directory.
# Please contribute your favourite simple little demo.
import win32file, win32api, win32con
import os
# A very simple demo - note that this does no more than you can do with
# builtin Python file objects, so for something as simple as this, you
# generally *should* use builtin Python objects. Only use win32file etc
# when you need win32 specific features not available in Python.
def SimpleFileDemo():
testName = os.path.join( win32api.GetTempPath(), "win32file_demo_test_file")
if os.path.exists(testName): os.unlink(testName)
# Open the file for writing.
handle = win32file.CreateFile(testName,
win32file.GENERIC_WRITE,
0,
None,
win32con.CREATE_NEW,
0,
None)
test_data = "Hello\0there".encode("ascii")
win32file.WriteFile(handle, test_data)
handle.Close()
# Open it for reading.
handle = win32file.CreateFile(testName, win32file.GENERIC_READ, 0, None, win32con.OPEN_EXISTING, 0, None)
rc, data = win32file.ReadFile(handle, 1024)
handle.Close()
if data == test_data:
print("Successfully wrote and read a file")
else:
raise Exception("Got different data back???")
os.unlink(testName)
if __name__=='__main__':
SimpleFileDemo()