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# More complex example than needed - used for documentation
import friendly_traceback
spam_missing_global = 1
spam_missing_both = 1
def outer_missing_global():
def inner():
spam_missing_global += 1
inner()
def outer_missing_nonlocal():
spam_missing_nonlocal = 1
def inner():
spam_missing_nonlocal += 1
inner()
def outer_missing_both():
spam_missing_both = 2
def inner():
spam_missing_both += 1
inner()
def test_Missing_global():
try:
outer_missing_global()
except UnboundLocalError as e:
message = str(e)
friendly_traceback.explain_traceback(redirect="capture")
result = friendly_traceback.get_output()
assert ("local variable 'spam_missing_global' referenced" in result or
"cannot access local variable 'spam_missing_global'" in result) # 3.11
if friendly_traceback.get_lang() == "en":
assert (
"Did you forget to add `global spam_missing_global`?\n"
in result
)
if friendly_traceback._writing_docs:
return result, message
def test_Missing_nonlocal():
try:
outer_missing_nonlocal()
except UnboundLocalError as e:
message = str(e)
friendly_traceback.explain_traceback(redirect="capture")
result = friendly_traceback.get_output()
assert ("local variable 'spam_missing_nonlocal' referenced" in result
or "cannot access local variable 'spam_missing_nonlocal'" in result) # 3.11
if friendly_traceback.get_lang() == "en":
assert (
"Did you forget to add `nonlocal spam_missing_nonlocal`?\n"
in result
)
if friendly_traceback._writing_docs:
return result, message
def test_Missing_both():
try:
outer_missing_both()
except UnboundLocalError as e:
message = str(e)
friendly_traceback.explain_traceback(redirect="capture")
result = friendly_traceback.get_output()
assert ("local variable 'spam_missing_both' referenced" in result
or "cannot access local variable 'spam_missing_both'" in result) # 3.11
if friendly_traceback.get_lang() == "en":
assert "either `global spam_missing_both`" in result
assert "`nonlocal spam_missing_both`" in result
if friendly_traceback._writing_docs:
return result, message
def test_Typo_in_local():
def test1():
alpha1 = 1
alpha2 += 1
try:
test1()
except UnboundLocalError:
friendly_traceback.explain_traceback(redirect="capture")
result = friendly_traceback.get_output()
assert ("local variable 'alpha2' referenced before assignment" in result
or "cannot access local variable 'alpha2'" in result) # 3.11
if friendly_traceback.get_lang() == "en":
assert "similar name `alpha1` was found" in result
def test2():
alpha1 = 1
alpha2 = 1
alpha3 += 1
try:
test2()
except UnboundLocalError as e:
message = str(e)
friendly_traceback.explain_traceback(redirect="capture")
result = friendly_traceback.get_output()
assert ("local variable 'alpha3' referenced before assignment" in result
or "cannot access local variable 'alpha3'" in result) # 3.11
if friendly_traceback.get_lang() == "en":
assert "perhaps you meant one of the following" in result
if friendly_traceback._writing_docs:
return result, message
def test_Using_name_of_builtin():
def dist(points):
max = max(points)
min = min(points)
return max - min
try:
dist([])
except UnboundLocalError as e:
message = str(e)
friendly_traceback.explain_traceback(redirect="capture")
result = friendly_traceback.get_output()
assert ("local variable 'max' referenced" in result
or "cannot access local variable 'max'" in result)
if friendly_traceback.get_lang() == "en":
assert "`max` is a Python builtin function." in result
if friendly_traceback._writing_docs:
return result, message
if __name__ == "__main__":
print(test_Missing_global()[0])
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