• Register
0 votes
2.4k views

Problem :

I am trying to convert my list into an array using Python, 
But I got below error
 ValueError: only one element tensors can be converted to Python scalars.
6 5 3
6,930 points

Please log in or register to answer this question.

1 Answer

0 votes

Solution :

It seems you have a list of tensors. For each tensor you can see its size(). If you want, you can convert a tensor to numpy array using numpy():

Returns a list of tensor shapes:

>> [t.size() for t in my_list_of_tensors]

Returns a list of numpy arrays:

>> [t.numpy() for t in my_list_of_tensors]

In terms of performance, it is always best to avoid casting of tensors into numpy arrays, If you only need to check the shape of a tensor, use size() function.

Further Readings:

https://github.com/onnx/onnx/issues/2158

9 7 4
38,600 points

Related questions

0 votes
1 answer 344 views
344 views
I was trying to write a programm using numpy and matplotlib. I am new to python programming. The code I wrote is: import numpy import matplotlib.pyplot def ThisFunction(a): return numpy.int(a) a = numpy.arange(3, 13.5, 0.7) matplotlib.pyplot.plot(a, ... 4, in ThisFunction return numpy.int(a) TypeError: only size-1 arrays can be converted to Python scalars how can I solve this problem?
asked Mar 15, 2020 LizzyM 6.1k points
0 votes
1 answer 2.7K views
2.7K views
Problem : I am getting below error: TypeError: only length-1 arrays can be converted to Python scalars How can I fix it?
asked Oct 21, 2019 peterlaw 6.9k points
0 votes
1 answer 740 views
740 views
Problem : I am having below error in a title, and I don't know what's wrong. It was working when I used np.hstack instead of the np.append, but I want to make this faster, so using append. time_list the list of floats heights is the 1d np.array of ... <module> axe_x.append(time_list[np.arange(j+n,j+(time_interval-n))]) TypeError: only integer arrays with one element can be converted to an index
asked Jan 24, 2020 jwilliam 3.9k points
2 votes
2 answers 852 views
852 views
Problem: I wrote the following code in python using numpy. But it gives me some error message. The code I wrote is: import numpy as np arrayone = np.array(['Human', 'Birds', 'Groots', 'Oats']) arraytwo = np.array(['Beach', 'Toast']) arraythree ... concatenate TypeError: only integer scalar arrays can be converted to a scalar index Can anyone sort out this error and solve this. Thanks in advance.
asked May 6, 2020 samhaz 5k points
0 votes
1 answer 13 views
13 views
Problem: f=np.loadtxt('Single Small Angle 1.txt',unpack=True,skiprows=2) g=np.loadtxt('Single Small Angle 5.txt',unpack=True,skiprows=2) x = f-g[:,:11944] t=range(len(x)) m=math.log10(abs(x)) np.polyfit(t,m) plt.plot(t,abs(x)) plt.show() I'm just not sure on how to fix my issue. It keeps saying: m=math.log10(abs(x)) TypeError: only length-1 arrays can be converted to Python scalars
asked Jan 7 Mashhoodch 9.1k points
0 votes
1 answer 35 views
35 views
Problem: I'm trying to run a code: f=np.loadtxt('Single Small Angle 1.txt',unpack=True,skiprows=2) g=np.loadtxt('Single Small Angle 5.txt',unpack=True,skiprows=2) x = f-g[:,:11944] t=range(len(x)) m=math.log10(abs(x)) np.polyfit(t,m)plt.plot(t,abs(x)) plt.show() m=math.log10(abs(x)) TypeError: only length-1 arrays can be converted to Python scalars. I'm just not sure how to fix my problem.
asked Nov 5, 2020 Han Li 710 points
1 vote
1 answer 66 views
66 views
Problem: I am doing a online course on python. I got an assginement from there. So I was trying to write a programm using numpy and matplotlib. I am new to python programming. The code I wrote is: import numpy import matplotlib.pyplot def ThisFunction(a): return ... .int(a) TypeError: only size-1 arrays can be converted to Python scalars Do anyone know why this error is happening, please help.
asked Apr 3, 2020 LizzyM 6.1k points
0 votes
1 answer 36 views
36 views
Problem: I have such Python code: import numpy as np import matplotlib.pyplot as plt def f(x): return np.int(x) x = np.arange(1, 15.1, 0.1) plt.plot(x, f(x)) plt.show() And such error: TypeError: only length-1 arrays can be converted to Python scalars How can I fix it?
asked Jan 10 Mashhoodch 9.1k points