Python Absl Duplicate Flag Error

When you happened to use absl in google colab, you could easily bump into Duplicate Flag Error especially when you run flags.DEFINE_ twice (or when you want to add new define).

from absl import flagsFLAGS = flags.FLAGS

Add the following code to reset the define.

for name in list(flags.FLAGS):    delattr(flags.FLAGS,name)

The do your define, or add additional define

flags.DEFINE_string('name', None, 'Project name')flags.DEFINE_integer('version', 1, 'Version number')