in SetVersion.py [0:0]
def ModifyIssFiles(fileList, targetVersion):
issFiles = [f for f in fileList if os.path.splitext(f)[-1] == ".iss"]
for issFile in issFiles:
print("Updating file ", issFile)
with open(issFile, "r+") as f:
fileData = f.read()
f.seek(0)
fileData = re.sub(r"(#define MyAppVersion).*",
r'\1 "{0}"'.format(targetVersion),
fileData)
f.write(fileData)