Bug report

Bug summary

I have more than 10 majorTicks on the X-axis. label1On is False for each of the odd numbered majorTicks. Call tick_params as shown in subject and label1On is True for all MajorTick members after return.

Code for reproduction

major_ticks=axis.xaxis.get_major_ticks()iflen(major_ticks)>10:fori,tickinenumerate(major_ticks):if (i%2)==1:tick.label1On=Falselogger.info("the value  of label1O is %r",axis.xaxis.majorTicks[1].label1On)axis.tick_params(axis='both',which='major',length=5)logger.info("the value  of label1O is %r",axis.xaxis.majorTicks[1].label1On)

Actual outcome

2019-01-18 16:42:28,509 - unavco.plotter.posfile - INFO - the value  of label1O is False2019-01-18 16:42:36,626 - unavco.plotter.posfile - INFO - the value  of label1O is True

Expected outcome

I expected the value of label1On to not change.
Use to work with version 1.2.0 and python 2.7

Matplotlib version

• Operating system: Mac OS High Sierra
• Matplotlib version: 3.0.2
• Matplotlib backend (print(matplotlib.get_backend())): MacOSX
• Python version: 3.7
• Jupyter version (if applicable):
• Other libraries:

yum install after install python 3.6