Duplicate dictionary keys PYL-W0109
Bug risk
Major
a year ago
—
a year old
Duplicate key 'I' in dictionary
1
2elementos_eletro = {'F':3.98,"O":3.44,"Cl":3.16,'N':3.04,'Br':2.96,'I':2.66,'S':2.58,'Ac':0.7,"La":0.79,'Sr':0.82,'Ce':0.89,'Th':0.89,'Na':0.93,'Y':0.95, 3'Li':0.98,'K':0.82,'Pr':1.1,'Pa':1.1,'Nd':1.12,'Pm':1.13,'Sm':1.14,
4'Gd':1.17,"Dy":1.2,'Zr':1.22,'Er':1.22,'Tm':1.23,'Yb':1.24,'Lu':1.25,
5'Ta':1.27,'Cm':1.28,'W':1.3,'U':1.3,'Bk':1.3,'Cf':1.3,'Es':1.3,Duplicate key 'S' in dictionary
1
2elementos_eletro = {'F':3.98,"O":3.44,"Cl":3.16,'N':3.04,'Br':2.96,'I':2.66,'S':2.58,'Ac':0.7,"La":0.79,'Sr':0.82,'Ce':0.89,'Th':0.89,'Na':0.93,'Y':0.95, 3'Li':0.98,'K':0.82,'Pr':1.1,'Pa':1.1,'Nd':1.12,'Pm':1.13,'Sm':1.14,
4'Gd':1.17,"Dy":1.2,'Zr':1.22,'Er':1.22,'Tm':1.23,'Yb':1.24,'Lu':1.25,
5'Ta':1.27,'Cm':1.28,'W':1.3,'U':1.3,'Bk':1.3,'Cf':1.3,'Es':1.3,Duplicate key 'S' in dictionary
27 texto = arquivo_deTexto.readlines()
28 return texto
29
30elementos_eletro = {'F':3.98,"O":3.44,"Cl":3.16,'N':3.04,'Br':2.96,'I':2.66,'S':2.58,'Ac':0.7,"La":0.79,'Sr':0.82,'Ce':0.89,'Th':0.89,'Na':0.93,'Y':0.95, 31'Li':0.98,'K':0.82,'Pr':1.1,'Pa':1.1,'Nd':1.12,'Pm':1.13,'Sm':1.14,
32'Gd':1.17,"Dy":1.2,'Zr':1.22,'Er':1.22,'Tm':1.23,'Yb':1.24,'Lu':1.25,
33'Ta':1.27,'Cm':1.28,'W':1.3,'U':1.3,'Bk':1.3,'Cf':1.3,'Es':1.3,Duplicate key 'I' in dictionary
27 texto = arquivo_deTexto.readlines()
28 return texto
29
30elementos_eletro = {'F':3.98,"O":3.44,"Cl":3.16,'N':3.04,'Br':2.96,'I':2.66,'S':2.58,'Ac':0.7,"La":0.79,'Sr':0.82,'Ce':0.89,'Th':0.89,'Na':0.93,'Y':0.95, 31'Li':0.98,'K':0.82,'Pr':1.1,'Pa':1.1,'Nd':1.12,'Pm':1.13,'Sm':1.14,
32'Gd':1.17,"Dy":1.2,'Zr':1.22,'Er':1.22,'Tm':1.23,'Yb':1.24,'Lu':1.25,
33'Ta':1.27,'Cm':1.28,'W':1.3,'U':1.3,'Bk':1.3,'Cf':1.3,'Es':1.3,
Description
This dictionary expression binds the same key multiple times. This may lead to unintentional behaviour as the key will always map the last value provided to it. It is recommended to have unique keys.
Bad practice
Here, the key random is provided twice.
DICT = {
"some": "some",
"random": "random",
"dict": "dict",
"values": "values",
"random": "different",
}
Recommended
All keys should be unique.
DICT = {
"some": "some",
"dict": "dict",
"values": "values",
"random": "different",
}