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import os
import subprocess
import sys
def test_no_additional_imports():
# test that 'import geopandas' does not import any of the optional or
# development dependencies
blacklist = {
"pytest",
"py",
"ipython",
# fiona actually gets imported if installed (but error suppressed until used)
# "fiona",
# "matplotlib", # matplotlib gets imported by pandas, see below
"mapclassify",
"sqlalchemy",
"psycopg",
"psycopg2",
"geopy",
"geoalchemy2",
"matplotlib",
}
code = f"""
import sys
import geopandas
blacklist = {blacklist!r}
mods = blacklist & set(m.split('.')[0] for m in sys.modules)
if mods:
sys.stderr.write('err: geopandas should not import: {{}}'.format(', '.join(mods)))
sys.exit(len(mods))
"""
# remove COV_CORE_SOURCE to avoid pytest-cov importing itself in the subprocess
env = os.environ.copy()
env.pop("COV_CORE_SOURCE", None)
call = [sys.executable, "-c", code]
returncode = subprocess.run(call, check=False, env=env).returncode
assert returncode == 0
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