Using variable 'criteria_names' before assignment pylint(E0601). This error pops up only for the 'criteria_names' list which is already assigned, but not for the other lists, which are assigned the same way. Any pointers or solutions are very appreciated!
CODE SNIPPET:
data = list()
lines = list()
n_vectors = list()
vectors = list()
medium_vectors = list()
classnames = list()
classes_insert_lines = list()
vectors_raw = list()
criteria_names = list()
def DataGet(temp_pulse_file):
data[:] = []
n_vectors[:] = []
vectors[:] = []
medium_vectors[:] = []
classnames[:] = []
classes_insert_lines[:] = []
vectors_raw[:] = []
criteria_names[:] = [] #<- this is where the error pops up
with open(temp_pulse_file, "r", encoding='utf-8') as file:
lines = (file.read()).split("\n")
file.close()
n = -1
for i in range(len(lines)):
data.append(lines[i].split(","))
if data[i][0] == ">":
n += 1
classnames.append(data[i][1])
classes_insert_lines.append(i + 1)
n_vectors.append(0)
vectors_raw.append([])
vectors.append([])
elif data[i][0] == "#":
weights = data[i][1:]
elif data[i][0] == "$":
criteria_names = list(data[i][1:])
else:
n_vectors[n] += 1
vectors[n].append(data[i])
vectors_raw[n].append(lines[i])
n_elems = len(vectors[0][0])
classes = len(classnames)
for i in range(classes):
for j in range(n_vectors[i]):
for k in range(n_elems):
vectors[i][j][k] = float(vectors[i][j][k])
return n_elems, classes, n_vectors, weights, lines, classes_insert_lines, vectors_raw
n_elems, classes, n_vectors, weights, lines, classes_insert_lines, vectors_raw = DataGet(getcurrentdir() + 'db.pulse')
print(' criteria_names:',criteria_names)
When I remove criteria_names[:] = [], no errors whatsoever for the other lists used in the function. Anything helps.
Thanks to @martineau and @Barmar, added global criteria_names at the beginning of the DataGet() function and it worked like a miracle. Weird tho.