import re
string = '{http://w...content-available-to-author-only...g.org/PMML-4_3}TreeModel/{http://w...content-available-to-author-only...g.org/PMML-4_3}Node/Node[1]/Node[4]/Node[1]'
matches = re.findall(r'/?(?:{[^{}]*})?[^/]+', string)
array = []
output = ''
for i in range(len(matches)):
output += matches[i];
array.append(output)
print(array)
aW1wb3J0IHJlCgpzdHJpbmcgPSAne2h0dHA6Ly93Li4uY29udGVudC1hdmFpbGFibGUtdG8tYXV0aG9yLW9ubHkuLi5nLm9yZy9QTU1MLTRfM31UcmVlTW9kZWwve2h0dHA6Ly93Li4uY29udGVudC1hdmFpbGFibGUtdG8tYXV0aG9yLW9ubHkuLi5nLm9yZy9QTU1MLTRfM31Ob2RlL05vZGVbMV0vTm9kZVs0XS9Ob2RlWzFdJwptYXRjaGVzID0gcmUuZmluZGFsbChyJy8/KD86e1tee31dKn0pP1teL10rJywgc3RyaW5nKQoKYXJyYXkgPSBbXQpvdXRwdXQgPSAnJwoKZm9yIGkgaW4gcmFuZ2UobGVuKG1hdGNoZXMpKToKICBvdXRwdXQgKz0gbWF0Y2hlc1tpXTsKICBhcnJheS5hcHBlbmQob3V0cHV0KQoKcHJpbnQoYXJyYXkp