IndexError: list index out of range at plotext/_build.py", line 261

[Jipok]

code

#!/usr/bin/env python3
import plotext as plt
#from subprocess import check_output
#import psutil
import time

CMD = "sensors amdgpu-pci-0500 | grep PPT | grep -oP '(?<=cap = )(.?\d+)'"
TARGET_TEMP = 83
CAP_MIN = 20
CAP_MAX = 180
CHART_HISTORY_COUNT = 55
plt.theme("pro")

# Prefill arrays for good chart after start
a_temp = []
a_powercap = []
#temp = psutil.sensors_temperatures()["amdgpu"][0].current
#powercap = int(check_output(CMD, shell = True).decode('utf-8'))
temp = 1
powercap = 1
for i in range(1, CHART_HISTORY_COUNT):
        a_temp.append(temp)
        a_powercap.append(powercap)

while True:
        # Trim chart
        if len(a_temp) > CHART_HISTORY_COUNT:
                a_temp = a_temp[1:]
                a_powercap = a_powercap[1:]
        # Get data
        #temp = psutil.sensors_temperatures()["amdgpu"][0].current
        a_temp.append(temp)
        #powercap = int(check_output(CMD, shell = True).decode('utf-8'))
        a_powercap.append(powercap)
        # Plot temp
        plt.clear_terminal()
        plt.clear_data()
        label = "Temp %s°C" % temp
        plt.plot(a_temp, label = label, color = "red")
        plt.ylabel(label)
        plt.ylim(20, 100)
        plt.hline(TARGET_TEMP, "green")
        # Plot power cap
        label = "Powercap %sW" % powercap
        plt.plot(a_powercap, label = label, yside = "right", color = "blue")
        plt.ylabel(label, yside = "right")
        plt.ylim(CAP_MIN - 10, CAP_MAX + 10, yside = "right")
        plt.show()
        # Limit power
        newcap = powercap
        if temp < TARGET_TEMP:
                cap_step = TARGET_TEMP - temp
                newcap = int(min(powercap + cap_step, CAP_MAX))
        if temp > TARGET_TEMP:
                cap_step = pow(temp - TARGET_TEMP, 2)
                newcap = int(max(powercap - cap_step, CAP_MIN))
        if newcap != powercap:
                check_output("/opt/rocm/bin/rocm-smi --setpoweroverdrive " + str(newcap), shell = True)

        time.sleep(1)

log

Traceback (most recent call last):
  File "/root/./main_dup.py", line 50, in <module>
    plt.show()
  File "/usr/lib/python3.11/site-packages/plotext/_core.py", line 293, in show
    _figure.show()
  File "/usr/lib/python3.11/site-packages/plotext/_figure.py", line 319, in show
    self.build()
    ^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/plotext/_figure.py", line 326, in build
    self._build_matrix()
  File "/usr/lib/python3.11/site-packages/plotext/_figure.py", line 332, in _build_matrix
    self.monitor.build_plot() if not self.monitor.fast_plot else None
    ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/plotext/_build.py", line 261, in build_plot
    [[self.matrix.insert_element(col_start + S + i, row_end - 1 - s, marker[s][i], color[s][i], style[s][i]) for i in range(3)] for s in range(l)] if legend_test else None
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/plotext/_build.py", line 261, in <listcomp>
    [[self.matrix.insert_element(col_start + S + i, row_end - 1 - s, marker[s][i], color[s][i], style[s][i]) for i in range(3)] for s in range(l)] if legend_test else None
     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/plotext/_build.py", line 261, in <listcomp>
    [[self.matrix.insert_element(col_start + S + i, row_end - 1 - s, marker[s][i], color[s][i], style[s][i]) for i in range(3)] for s in range(l)] if legend_test else None
                                                                                   ~~~~~~~~^^^
IndexError: list index out of range

This is a real script that I use, I replaced receiving real data and now it should run and give the same result on any hardware. For some reason, this problem only occurs the first time the script is launched after the server is rebooted. If the script runs successfully, then after that it will always run successfully.

[jc-audet]

This issue arrises because the lines your trying to plot does not appear in the y axis limits of [20,100], which causes empty arrays in the build. It is fixed with the piece of code in #197.

[cap-txt]

I have the same issue, which only shows up if I pass a label to the plot and not otherwise.

[piccolomo]

Just to update and apologise: I have been quite busy rewriting the package from ground up and will update.