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Record the CODATA edition instead of a timestamp in the generated constants file #279

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Record the CODATA edition instead of a timestamp in the generated constants file #279

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2 changes: 2 additions & 0 deletions pyproject.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -73,3 +73,5 @@ ignore = []
"quantities/units/*.py" = ["F401"]
"quantities/constants/*.py" = ["F401"]
"quantities/__init__.py" = ["F401", "F403"]
# Generated from NIST_codata.txt with one constant per line.
"quantities/constants/_codata.py" = ["E501"]
2 changes: 1 addition & 1 deletion quantities/constants/NIST_codata.txt
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@@ -1,6 +1,6 @@

Fundamental Physical Constants --- Complete Listing

2006 CODATA adjustment

From: http://physics.nist.gov/constants

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1 change: 1 addition & 0 deletions quantities/constants/_codata.py
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@@ -1,5 +1,6 @@
# THIS FILE IS AUTOMATICALLY GENERATED
# ANY CHANGES MADE HERE WILL BE LOST
# Source: CODATA 2006 recommended values, from NIST_codata.txt

physical_constants = {}

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8 changes: 6 additions & 2 deletions setup.py
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@@ -1,7 +1,8 @@
import re

from setuptools import Command, setup
from setuptools.command.build_py import build_py as _build
from setuptools.command.sdist import sdist as _sdist
from datetime import datetime


class data(Command):
Expand All @@ -19,12 +20,15 @@ def finalize_options(self):
def run(self):
with open('quantities/constants/NIST_codata.txt') as f:
data = f.read()
edition = re.search(r'(\d{4}) CODATA adjustment', data)
if edition is None:
raise ValueError('CODATA edition not found in NIST_codata.txt')
data = data.split('\n')[10:-1]

with open('quantities/constants/_codata.py', 'w') as f:
f.write('# THIS FILE IS AUTOMATICALLY GENERATED\n')
f.write('# ANY CHANGES MADE HERE WILL BE LOST\n')
f.write(f'# LAST GENERATED: {datetime.now()}\n\n')
f.write(f'# Source: CODATA {edition[1]} recommended values, from NIST_codata.txt\n\n')
f.write('physical_constants = {}\n\n')
for line in data:
name = line[:55].rstrip().replace('mag.','magnetic')
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