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6 changes: 3 additions & 3 deletions pypot/utils/trajectory.py
Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@


import numpy
import collections
import collections.abc

import pypot.utils.pypot_time as time
from ..utils.stoppablethread import StoppableLoopThread
Expand Down Expand Up @@ -42,7 +42,7 @@ def get_value(self, t):
return self._mygenerator[-1](t)

def domain(self, x):
if not isinstance(x, collections.Iterable):
if not isinstance(x, collections.abc.Iterable):
x = numpy.array([x])

return numpy.array([
Expand All @@ -54,7 +54,7 @@ def test_domain(self, x):
return [((numpy.array(x) >= self.durations[i])) for i in range(len(self.durations) - 1)]

def fix_input(self, x):
return x if isinstance(x, collections.Iterable) else numpy.array([0, x])
return x if isinstance(x, collections.abc.Iterable) else numpy.array([0, x])

def get_generator(self):
return lambda x: numpy.piecewise(x, self.domain(x), [self._generators[j] for j in range(len(self._generators))] + [self.finals[-1]])
Expand Down