Mercurial > repos > shellac > guppy_basecaller

annotate env/lib/python3.7/site-packages/prov/__init__.py @ 3:758bc20232e8 draft

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"planemo upload commit 2a0fe2cc28b09e101d37293e53e82f61762262ec"
author shellac
date Thu, 14 May 2020 16:20:52 -0400
parents 26e78fe6e8c4
children
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1 from __future__ import (absolute_import, division, print_function,
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2 unicode_literals)
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3
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4 __author__ = 'Trung Dong Huynh'
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5 __email__ = 'trungdong@donggiang.com'
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6 __version__ = '1.5.1'
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7
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8 __all__ = ["Error", "model", "read"]
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11 class Error(Exception):
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12 """Base class for all errors in this package."""
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13 pass
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14
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15
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16 def read(source, format=None):
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17 """
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18 Convenience function returning a ProvDocument instance.
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19
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20 It does a lazy format detection by simply using try/except for all known
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21 formats. The deserializers should fail fairly early when data of the
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22 wrong type is passed to them thus the try/except is likely cheap. One
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23 could of course also do some more advanced format auto-detection but I am
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24 not sure that is necessary.
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25
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26 The downside is that no proper error messages will be produced, use the
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27 format parameter to get the actual traceback.
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28 """
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29 # Lazy imports to not globber the namespace.
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30 from prov.model import ProvDocument
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31
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32 from prov.serializers import Registry
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33 Registry.load_serializers()
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34 serializers = Registry.serializers.keys()
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35
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36 if format:
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37 return ProvDocument.deserialize(source=source, format=format.lower())
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38
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39 for format in serializers:
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40 try:
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41 return ProvDocument.deserialize(source=source, format=format)
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42 except:
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43 pass
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44 else:
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45 raise TypeError("Could not read from the source. To get a proper "
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46 "error message, specify the format with the 'format' "
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47 "parameter.")