Error with 2D streamlines and numpy 1.24.0

[Davide-sd]

My CI is failing with the latest Numpy version (1.24.0).

My plotly version is: 5.11.0

import plotly.figure_factory as ff

import numpy as np

x = np.linspace(-3, 3, 100)
y = np.linspace(-3, 3, 100)
Y, X = np.meshgrid(x, y)
u = -1 - X**2 + Y
v = 1 + X - Y**2

# Create streamline figure
fig = ff.create_streamline(x, y, u, v, arrow_scale=.1)
fig.show()

Traceback:

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
Cell In[3], line 12
      9 v = 1 + X - Y**2
     11 # Create streamline figure
---> 12 fig = ff.create_streamline(x, y, u, v, arrow_scale=.1)
     13 fig.show()

File ~/Documents/Development/envs/plot/lib/python3.10/site-packages/plotly/figure_factory/_streamline.py:117, in create_streamline(x, y, u, v, density, angle, arrow_scale, **kwargs)
    114 validate_streamline(x, y)
    115 utils.validate_positive_scalars(density=density, arrow_scale=arrow_scale)
--> 117 streamline_x, streamline_y = _Streamline(
    118     x, y, u, v, density, angle, arrow_scale
    119 ).sum_streamlines()
    120 arrow_x, arrow_y = _Streamline(
    121     x, y, u, v, density, angle, arrow_scale
    122 ).get_streamline_arrows()
    124 streamline = graph_objs.Scatter(
    125     x=streamline_x + arrow_x, y=streamline_y + arrow_y, mode="lines", **kwargs
    126 )

File ~/Documents/Development/envs/plot/lib/python3.10/site-packages/plotly/figure_factory/_streamline.py:168, in _Streamline.__init__(self, x, y, u, v, density, angle, arrow_scale, **kwargs)
    166 self.st_x = []
    167 self.st_y = []
--> 168 self.get_streamlines()
    169 streamline_x, streamline_y = self.sum_streamlines()
    170 arrows_x, arrows_y = self.get_streamline_arrows()

File ~/Documents/Development/envs/plot/lib/python3.10/site-packages/plotly/figure_factory/_streamline.py:299, in _Streamline.get_streamlines(self)
    297 for indent in range(self.density // 2):
    298     for xi in range(self.density - 2 * indent):
--> 299         self.traj(xi + indent, indent)
    300         self.traj(xi + indent, self.density - 1 - indent)
    301         self.traj(indent, xi + indent)

File ~/Documents/Development/envs/plot/lib/python3.10/site-packages/plotly/figure_factory/_streamline.py:289, in _Streamline.traj(self, xb, yb)
    287     return
    288 if self.blank[yb, xb] == 0:
--> 289     t = self.rk4_integrate(xb * self.spacing_x, yb * self.spacing_y)
    290     if t is not None:
    291         self.trajectories.append(t)

File ~/Documents/Development/envs/plot/lib/python3.10/site-packages/plotly/figure_factory/_streamline.py:259, in _Streamline.rk4_integrate(self, x0, y0)
    256             break
    257     return stotal, xf_traj, yf_traj
--> 259 sf, xf_traj, yf_traj = rk4(x0, y0, f)
    260 sb, xb_traj, yb_traj = rk4(x0, y0, g)
    261 stotal = sf + sb

File ~/Documents/Development/envs/plot/lib/python3.10/site-packages/plotly/figure_factory/_streamline.py:234, in _Streamline.rk4_integrate.<locals>.rk4(x0, y0, f)
    232 yf_traj.append(yi)
    233 try:
--> 234     k1x, k1y = f(xi, yi)
    235     k2x, k2y = f(xi + 0.5 * ds * k1x, yi + 0.5 * ds * k1y)
    236     k3x, k3y = f(xi + 0.5 * ds * k2x, yi + 0.5 * ds * k2y)

File ~/Documents/Development/envs/plot/lib/python3.10/site-packages/plotly/figure_factory/_streamline.py:207, in _Streamline.rk4_integrate.<locals>.f(xi, yi)
    206 def f(xi, yi):
--> 207     dt_ds = 1.0 / self.value_at(self.speed, xi, yi)
    208     ui = self.value_at(self.u, xi, yi)
    209     vi = self.value_at(self.v, xi, yi)

File ~/Documents/Development/envs/plot/lib/python3.10/site-packages/plotly/figure_factory/_streamline.py:186, in _Streamline.value_at(self, a, xi, yi)
    184     self.y = yi.astype(np.int)
    185 else:
--> 186     self.val_x = np.int(xi)
    187     self.val_y = np.int(yi)
    188 a00 = a[self.val_y, self.val_x]

File ~/Documents/Development/envs/plot/lib/python3.10/site-packages/numpy/__init__.py:284, in __getattr__(attr)
    281     from .testing import Tester
    282     return Tester
--> 284 raise AttributeError("module {!r} has no attribute "
    285                      "{!r}".format(__name__, attr))

AttributeError: module 'numpy' has no attribute 'int'