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33 lines
1.1 KiB
Python
33 lines
1.1 KiB
Python
import re
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from gym import error
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import glob
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# checkpoints/KerasDDPG-InvertedPendulum-v0-20170701190920_actor.h5
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weight_save_re = re.compile(r'^(?:\w+\/)+?(\w+-v\d+)-(\w+-v\d+)-(\d+)(?:_\w+)?\.(\w+)$')
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def get_fields(weight_save_name):
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match = weight_save_re.search(weight_save_name)
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if not match:
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raise error.Error(
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'Attempted to read a malformed weight save: {}. (Currently all weight saves must be of the form {}.)'
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.format(id, weight_save_re.pattern))
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return match.group(1), match.group(2), int(match.group(3))
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def get_latest_save(file_folder, agent_name, env_name, version_number):
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"""
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Returns the properties of the latest weight save. The information can be used to generate the loading path
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:return:
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"""
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path = "%s%s" % (file_folder, "*.h5")
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file_list = glob.glob(path)
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latest_file_properties = []
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file_properties = []
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for f in file_list:
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file_properties = get_fields(f)
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if file_properties[0] == agent_name and file_properties[1] == env_name and (
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latest_file_properties == [] or file_properties[2] > latest_file_properties[2]):
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latest_file_properties = file_properties
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return latest_file_properties
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