diff --git a/pyerrors/fits.py b/pyerrors/fits.py index 5ec857e0..6518b224 100644 --- a/pyerrors/fits.py +++ b/pyerrors/fits.py @@ -168,12 +168,12 @@ def least_squares(x, y, func, priors=None, silent=False, **kwargs): ''' output = Fit_result() - if (type(x) == dict and type(y) == dict and type(func) == dict): + if (isinstance(x, dict) and isinstance(y, dict) and isinstance(func, dict)): xd = {key: anp.asarray(x[key]) for key in x} yd = y funcd = func output.fit_function = func - elif (type(x) == dict or type(y) == dict or type(func) == dict): + elif (isinstance(x, dict) or isinstance(y, dict) or isinstance(func, dict)): raise TypeError("All arguments have to be dictionaries in order to perform a combined fit.") else: x = np.asarray(x)