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[Bug]: ticklabels are not defined before plt.show() is called #24784
Description
Bug summary
I was trying to change and update the xtickslabels using:
my_xlabels = [x.get_text().replace('_', ' ') for x in ax.get_xticklabels()]
ax.set_xticks(list(ax.get_xticks()))
ax.set_xticklabels(my_xlabels, rotation=90, ha='center')but it does not work because all the xtickslabels are empty strings at that time and only get the values as they should after plt.show() is called.
Code for reproduction
import matplotlib.pyplot as plt
import pandas as pd
tmp = pd.DataFrame({
'labels': ['my_first_label', 'my_second_label', 'another'],
'values_mean': [5,6,7],
'values_std': [0.5, 0.4, 0.6],
})
fig, ax = plt.subplots(1,1, figsize=(5,4))
ax.bar(tmp['labels'], tmp['values_mean'], yerr=tmp['values_std'])
# print(ax.get_xticklabels())
# print(ax.get_xticks())
# get ticks
# my_xlabels = [x.get_text().replace('_', ' ') for x in ax.get_xticklabels()]
# ax.set_xticks(list(ax.get_xticks()))
# ax.set_xticklabels(my_xlabels, rotation=90, ha='center')
# ax.xaxis.set_ticks(ax.get_xticks())
# ax.xaxis.set_ticklabels(my_xlabels, rotation=90, ha='center')
print('ticks before:\n', ax.get_xticklabels())
plt.show()
print('ticks after:\n', ax.get_xticklabels())
# print(ax.xaxis.get_ticklabels())Actual outcome
Expected outcome
How do I access the labels before I call the plot? None of the methods mentioned, for example, in this post or in the matplotlib documentation works because there are only empty strings if one calls ax.get_xticklabels() or ax.xaxis.get_ticklabels().
They should be accessible before plotting.
Additional information
I have never had this problem before, it seems new to me.
Operating system
MacOS
Matplotlib Version
3.4.2
Matplotlib Backend
module://matplotlib_inline.backend_inline
Python version
No response
Jupyter version
No response
Installation
None
Activity
QuLogic commented on Dec 20, 2022
This was fixed by #23170; please update to 3.6.0 or newer.
jankaWIS commented on Dec 20, 2022
Missed that. Thanks, that works!