Method 'Angle.dstr()' does not return a list if Angle has multiple values

[miccoli]

Given this initialisation

from skyfield.units import Angle
import numpy as np

a = Angle(degrees=np.arange(0,180, 30))

method a.dstr() returns the string

'6 values from 00deg 00\' 00.0" to 150deg 00\' 00.0"'

while I would expect

['00deg 00\' 00.0"',
 '30deg 00\' 00.0"',
 '60deg 00\' 00.0"',
 '90deg 00\' 00.0"',
 '120deg 00\' 00.0"',
 '150deg 00\' 00.0"']

The only way I found to obtain a list of strings is the rather clumsy

[Angle(degrees=i).dstr() for i in a.degrees]

BTW,

for i in a:
    pass

raises

ValueError: choose a specific Angle unit to iterate over

Instead of iterating over this Angle object, try iterating over one of
its unit-specific arrays like .degrees, .hours, or .radians, or else over
the output of one of its methods like .hstr(), .dstr(), .arcminutes(),
.arcseconds(), or .mas().  For all of the possibilities see:
https://rhodesmill.org/skyfield/api-units.html#skyfield.units.Angle

confirming that a.dstr() should be an iterable of strings.

[brandon-rhodes]

Great idea! I must never call those methods myself, as I didn't realize that wasn't already their behavior.

I've just landed an improvement. You can try it out with:

pip install https://github.com/skyfielders/python-skyfield/archive/master.zip

Let me know whether that fixes the problem and brings their behavior into line with the ValueError text. Thanks!

[miccoli]

Yes, commit ce9411c implements the expected behaviour. Thanks.

[brandon-rhodes]

Great! I'll be sure to add it to the changelog before the next release, which hopefully will be early to mid January.