Program quit unormally without reporting error

[SunflowerColor]

Bug report

Bug summary

My program is ran correctly with matplotlib2.2.2 ,but it quits unnormally without reporting error when matplotlib is upgrade to 3.0.

Code for reproduction

import matplotlib

matplotlib.use('TkAgg')
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
from matplotlib.figure import Figure

    def createWidgets(self):
        fig = Figure(figsize=(8, 6), dpi=100)
        self.ax_vp = fig.add_subplot(231)
        self.lines_vp, = self.ax_vp.plot([], [])
        self.ax_ip = fig.add_subplot(232)
        self.lines_ip, = self.ax_ip.plot([], [])
        self.ax_pp = fig.add_subplot(233)
        self.lines_pp, = self.ax_pp.plot([], [])
        self.ax_vb = fig.add_subplot(234)
        self.lines_vb, = self.ax_vb.plot([], [])
        self.ax_ib = fig.add_subplot(235)
        self.lines_ib, = self.ax_ib.plot([], [])
        self.ax_pwm = fig.add_subplot(236)
        self.lines_pwm, = self.ax_pwm.plot([], [])
        self.canvas = FigureCanvasTkAgg(fig, master=self)
        self.canvas.get_tk_widget().pack(side=tk.TOP, fill=tk.BOTH, expand=1)
        self.canvas._tkcanvas.pack(side=tk.TOP, fill=tk.BOTH, expand=1)

    def draw(self):
        self.update_draw(self.lines_vp,self.ax_vp,self.datas['Vpv'])
        self.update_draw(self.lines_ip,self.ax_ip,self.datas['Ipv'])
        self.update_draw(self.lines_pp,self.ax_pp,self.datas['Ppv'])
        self.update_draw(self.lines_vb,self.ax_vb,self.datas['Vboost'])
        self.update_draw(self.lines_ib,self.ax_ib,self.datas['Iboost'])
        self.update_draw(self.lines_pwm,self.ax_pwm,self.datas['PWM'])
        self.canvas.draw()

Actual outcome

#this program quit without any outcome

# If applicable, paste the console output here
#
#

Expected outcome

Matplotlib version

• Operating system:Windows10
• Matplotlib version: 3.0
• Matplotlib backend (print(matplotlib.get_backend())):TkAgg
• Python version:3.5.2
• Jupyter version (if applicable):
• Other libraries: pyserial3.4

[WeatherGod]

Are you able to do a simple matplotlib program, like ``` import matplotlib matplotlib.use('tkagg') import matplotlib.pyplot as plt plt.plot([1, 2, 3]) plt.show() ``` Also, how did you install matplotlib?

…

On Wed, Oct 17, 2018 at 5:34 AM SunflowerColor ***@***.***> wrote: Bug report *Bug summary* My program is ran correctly with matplotlib2.2.2 ,but it quits unnormally without reporting error when matplotlib is upgrade to 3.0. *Code for reproduction* import matplotlib matplotlib.use('TkAgg')from matplotlib.backends.backend_tkagg import FigureCanvasTkAggfrom matplotlib.figure import Figure def createWidgets(self): fig = Figure(figsize=(8, 6), dpi=100) self.ax_vp = fig.add_subplot(231) self.lines_vp, = self.ax_vp.plot([], []) self.ax_ip = fig.add_subplot(232) self.lines_ip, = self.ax_ip.plot([], []) self.ax_pp = fig.add_subplot(233) self.lines_pp, = self.ax_pp.plot([], []) self.ax_vb = fig.add_subplot(234) self.lines_vb, = self.ax_vb.plot([], []) self.ax_ib = fig.add_subplot(235) self.lines_ib, = self.ax_ib.plot([], []) self.ax_pwm = fig.add_subplot(236) self.lines_pwm, = self.ax_pwm.plot([], []) self.canvas = FigureCanvasTkAgg(fig, master=self) self.canvas.get_tk_widget().pack(side=tk.TOP, fill=tk.BOTH, expand=1) self.canvas._tkcanvas.pack(side=tk.TOP, fill=tk.BOTH, expand=1) def draw(self): self.update_draw(self.lines_vp,self.ax_vp,self.datas['Vpv']) self.update_draw(self.lines_ip,self.ax_ip,self.datas['Ipv']) self.update_draw(self.lines_pp,self.ax_pp,self.datas['Ppv']) self.update_draw(self.lines_vb,self.ax_vb,self.datas['Vboost']) self.update_draw(self.lines_ib,self.ax_ib,self.datas['Iboost']) self.update_draw(self.lines_pwm,self.ax_pwm,self.datas['PWM']) self.canvas.draw() *Actual outcome* #this program quit without any outcome # If applicable, paste the console output here # # *Expected outcome* *Matplotlib version* - Operating system:Windows10 - Matplotlib version: 3.0 - Matplotlib backend (print(matplotlib.get_backend())):TkAgg - Python version:3.5.2 - Jupyter version (if applicable): - Other libraries: pyserial3.4 — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#12545>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AARy-CrZLlHs8Wt2EDrpCZo1MY3w6iInks5ulvkcgaJpZM4XjgZc> .

[jklymak]

That program above has no main section. Can you supply a self-contained minimal working example that fails for you?

[jklymak]

Closing for lack of info. Feel free to request a re-open if more details are available. Thanks!