import re
tempFile = (" <Command name=\"somecom\" type=\"type\" >\n"
" <input name=\"some input\" />\n"
" <output name=\"some output\" />\n"
" </Command>\n"
" <?ignore <Command name=\"somecom\" type=\"type\" >\n"
" <input name=\"some input\" />\n"
" <output name=\"some output\" />\n"
" </Command> ?>")
patr = re.compile(r"<\?ignore\b.*\n(?!.*\?>)(?:.*\n)*.*\?>")
tempFile = re.sub(patr,"",tempFile)
print(tempFile)
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