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28 changes: 14 additions & 14 deletions EducationalAssignments/ImmutableVersionOne.md
Original file line number Diff line number Diff line change
Expand Up @@ -108,21 +108,21 @@ class VMFile():
def __init__(self, filename, create):
# If a file with the same 'filename' already exists, this creates a new version 'filename.v1'.
# (Incomplete: does not handle further versions like v2, v3, etc.)
if create:
if filename in listfiles():
# File exists → create version 1
prev_file = openfile(filename, False)
content = prev_file.readat(None, 0)

new_name = filename + ".v1"
self.VMfile = openfile(new_name, True)
self.VMfile.writeat(content, 0)
if create:
if filename in listfiles():
# File exists → create version 1
prev_file = openfile(filename, False)
content = prev_file.readat(None, 0)

new_name = filename + ".v1"
self.VMfile = openfile(new_name, True)
self.VMfile.writeat(content, 0)
else:
# File doesn't exist → create filename
self.VMfile = openfile(filename, True)
else:
# File doesn't exist → create filename
self.VMfile = openfile(filename, True)
else:
# Open existing file normally
self.VMfile = openfile(filename, False)
# Open existing file normally
self.VMfile = openfile(filename, False)

def readat(self, num_bytes, offset):
return self.VMfile.readat(num_bytes, offset)
Expand Down