CODEWITHSUNDEEP
python
Blanconieves
Blanconieves

Reputation: 1

ValueError: not enough values to unpack (expected 4, got 0)

name, Ll, eLL, Mg= np.loadtxt('data.txt', comments='#', unpack=True)
Ntrials= sum(1 for line in open('data.txt'))

The data file contains four columns with values under every column Data file info

Does anyone know why I am getting that error?

Upvotes: 0

Views: 1728

Answers (1)

Murali S
Murali S

Reputation: 61

You are trying to create 4 variables which are name, Ll, eLL, Mg, so make sure that you are getting 4 values from right hand side code.

np.loadtxt('data.txt', comments='#', unpack=True)

The above line must contain 4 values otherwise unpacking will not happen and ValueError will be thrown.

You can learn more about unpacking here: https://www.w3schools.com/python/python_tuples_unpack.asp

Upvotes: 1

Related Questions