Deprecations

Reverted deprecation of `~.dates.num2epoch` and `~.dates.epoch2num`

These two functions were deprecated in 3.3.0, and did not return

an accurate Matplotlib datenum relative to the new Matplotlib epoch

handling (`~.dates.get_epoch` and:rc:`date.epoch`). This version

reverts the deprecation and fixes those functions to work with

`~.dates.get_epoch`.

0.5)

deftest_warn_notintervals():

dates=np.arange('2001-01-10','2001-03-04',dtype='datetime64[D]')

locator=mdates.AutoDateLocator(interval_multiples=False)

locator.intervald[3]= [2]

locator.create_dummy_axis()

locator.set_view_interval(mdates.date2num(dates[0]),

mdates.date2num(dates[-1]))

withpytest.warns(UserWarning,match="AutoDateLocator was unable")asrec:

locs=locator()

deftest_change_converter():

plt.rcParams['date.converter']='concise'

dates=np.arange('2020-01-01','2020-05-01',dtype='datetime64[D]')

fig,ax=plt.subplots()

ax.plot(dates,np.arange(len(dates)))

fig.canvas.draw()

assertax.get_xticklabels()[0].get_text()=='Jan'

assertax.get_xticklabels()[1].get_text()=='15'

plt.rcParams['date.converter']='auto'

fig,ax=plt.subplots()

ax.plot(dates,np.arange(len(dates)))

fig.canvas.draw()

assertax.get_xticklabels()[0].get_text()=='Jan 01 2020'

assertax.get_xticklabels()[1].get_text()=='Jan 15 2020'

withpytest.warns(UserWarning)asrec:

plt.rcParams['date.converter']='boo'

deftest_change_interval_multiples():

plt.rcParams['date.interval_multiples']=False

dates=np.arange('2020-01-10','2020-05-01',dtype='datetime64[D]')

fig,ax=plt.subplots()

ax.plot(dates,np.arange(len(dates)))

fig.canvas.draw()

assertax.get_xticklabels()[0].get_text()=='Jan 10 2020'

assertax.get_xticklabels()[1].get_text()=='Jan 24 2020'

plt.rcParams['date.interval_multiples']='True'

fig,ax=plt.subplots()

ax.plot(dates,np.arange(len(dates)))

fig.canvas.draw()

assertax.get_xticklabels()[0].get_text()=='Jan 15 2020'

assertax.get_xticklabels()[1].get_text()=='Feb 01 2020'

deftest_epoch2num():

mdates._reset_epoch_test_example()

mdates.set_epoch('0000-12-31')