8000 Fix code style issues flagged by LGTM by chrisorner · Pull Request #1559 · pvlib/pvlib-python · GitHub
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Fix code style issues flagged by LGTM #1559

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Merged
merged 4 commits into from
Sep 27, 2022
Merged

Fix code style issues flagged by LGTM #1559

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ac8db0c
fixing issues
Sep 27, 2022
d72b4e4
fix long lines
Sep 27, 2022
9558e2b
whats new file edited
Sep 27, 2022
ba7c5f2
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Sep 27, 2022
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fixing issues
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Christian Orner committed Sep 27, 2022
commit ac8db0c801fe53392feb7795dc50d4eaf522bb72
1 change: 0 additions & 1 deletion pvlib/forecast.py
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Expand Up @@ -10,7 +10,6 @@

from pvlib.location import Location
from pvlib.irradiance import campbell_norman, get_extra_radiation, disc
from pvlib.irradiance import _liujordan
from siphon.catalog import TDSCatalog
from siphon.ncss import NCSS

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12 changes: 5 additions & 7 deletions pvlib/iam.py
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Expand Up @@ -362,18 +362,16 @@ def martin_ruiz_diffuse(surface_tilt, a_r=0.16, c1=0.4244, c2=None):

beta = np.radians(surface_tilt)

from numpy import pi, sin, cos, exp

# avoid RuntimeWarnings for <, sin, and cos with nan
with np.errstate(invalid='ignore'):
# because sin(pi) isn't exactly zero
sin_beta = np.where(surface_tilt < 90, sin(beta), sin(pi - beta))
sin_beta = np.where(surface_tilt < 90, np.sin(beta), np.sin(np.pi - beta))

trig_term_sky = sin_beta + (pi - beta - sin_beta) / (1 + cos(beta))
trig_term_gnd = sin_beta + (beta - sin_beta) / (1 - cos(beta)) # noqa: E222 E261 E501
trig_term_sky = sin_beta + (np.pi - beta - sin_beta) / (1 + np.cos(beta))
trig_term_gnd = sin_beta + (beta - sin_beta) / (1 - np.cos(beta)) # noqa: E222 E261 E501

iam_sky = 1 - exp(-(c1 + c2 * trig_term_sky) * trig_term_sky / a_r)
iam_gnd = 1 - exp(-(c1 + c2 * trig_term_gnd) * trig_term_gnd / a_r)
iam_sky = 1 - np.exp(-(c1 + c2 * trig_term_sky) * trig_term_sky / a_r)
iam_gnd = 1 - np.exp(-(c1 + c2 * trig_term_gnd) * trig_term_gnd / a_r)

if out_index is not None:
iam_sky = pd.Series(iam_sky, index=out_index, name='iam_sky')
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17 changes: 11 additions & 6 deletions pvlib/iotools/epw.py
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Expand Up @@ -225,14 +225,19 @@ def read_epw(filename, coerce_year=None):
'AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 '
'Safari/537.36')})
response = urlopen(request)
csvdata = io.StringIO(response.read().decode(errors='ignore'))
with io.StringIO(response.read().decode(errors='ignore')) as csvdata:
try:
data, meta = parse_epw(csvdata, coerce_year)
except Exception as e:
print(e)
else:
# Assume it's accessible via the file system
csvdata = open(str(filename), 'r')
try:
data, meta = parse_epw(csvdata, coerce_year)
finally:
csvdata.close()
with open(str(filename), 'r') as csvdata:
try:
data, meta = parse_epw(csvdata, coerce_year)
except Exception as e:
print(e)
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I think we definitely want to propagate any parsing errors instead of printing them and letting execution continue, so better to get rid of the try/excepts in these two blocks.

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Thanks @chrisorner for the contribution and closing a long-standing annoying issue, and also thanks @kanderso-nrel for quick and thoughtful review. I apologize for commenting after the fact. I agree with Kevin (altho he might not agree with me). In my opinion we should restrict using print() in pvlib, except perhaps in examples, b/c it blocks the main execution thread which reduces performance. An alternative is logging which has many useful features, executes in separate thread, and therefore, does not block the main Python thread. However, as a rule pvlib has avoided logging except during development. Hope this makes sense to folks. Just my thoughts/opinions, definitely do not speak for anyone other than myself.

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@mikofski just to be sure, would you change anything about the state of this PR as it was merged? Note that this printing was removed in a later commit and didn't make it into the final squashed diff.

I definitely agree that print() inside pvlib itself is never (or at least very rarely) the best way to present information to the user.

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Nope, no changes. I was very happy with this PR and the review. Thanks again! Just wanted to make sure it was in the record that I extremely discourage print(), and I consider logging a better alternative although to date, hasn't been used in pvlib much.


return data, meta


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1 change: 0 additions & 1 deletion pvlib/location.py
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Expand Up @@ -6,7 +6,6 @@

import os
import datetime
import warnings

import pandas as pd
import pytz
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1 change: 0 additions & 1 deletion pvlib/temperature.py
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Expand Up @@ -655,7 +655,6 @@ def fuentes(poa_global, temp_air, wind_speed, noct_installed, module_height=5,

# iterate through timeseries inputs
sun0 = 0
tmod0 = 293.15

# n.b. the way Fuentes calculates the first timedelta makes it seem like
# the value doesn't matter -- rather than recreate it here, just assume
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1 change: 0 additions & 1 deletion setup.py
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@@ -1,7 +1,6 @@
#!/usr/bin/env python

import os
import sys

try:
from setuptools import setup, find_namespace_packages
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