variance

import os
import requests
from urllib.parse import urlparse

def download_file_if_needed(url, file_path=None):
    """Download file if it doesn't exist or is empty."""
    if file_path is None:
        parsed_url = urlparse(url)
        filename = os.path.basename(parsed_url.path)
        if not filename:

variance

def deg2str(d, *, decimals=3, colon_separated=False):
    """convert decimal degrees to a DMS string"""
    sign = '-' if d < 0 else ''
    deg = int(abs(d)) 
    min_ = int(abs(d) * 60) % 60
    sec = (abs(d) * 3600) % 60
    return (f"{sign}{deg:d}:{min_:02d}:{sec:.{decimals}f}" if colon_separated
            else f'''{sign}{deg:d}°{min_:02d}'{sec:0{decimals + 3 if decimals else 2}.{decimals}f}"''') 

variance

# first syntax is D° M' S.sss" (spaces are optional)
DMS_CRE1 = re.compile(r'''\s*(?P<deg>[+-]?\d+)[°d]\s?(?P<min>\d+)['´′m](?:\s?(?P<sec>(\d+(\.\d*)?|\.\d+))["″s])?\s*''')
# alternative syntax is D:M:S.sss (no space allowed)
DMS_CRE2 = re.compile(r'''\s*(?P<deg>[+-]?\d+):(?P<min>\d+):(?P<sec>(\d+(\.\d*)?|\.\d+))\s*''')

def str2deg(s):
    """convert a string to decimal degrees
    
    Either a decimal number or a D:M:S.s or D°M'S.s" with an optional sign is supported.
    (Degrees and minutes must be integer but fractions of arc seconds are ok.)