Removing specific ticks from matplotlib plot

Question

I'm trying to remove the origin ticks from my plot below to stop them overlapping, alternatively just moving them away from each other would also be great I tried this:

xticks = ax.xaxis.get_major_ticks()
xticks[0].label1.set_visible(False)
yticks = ax.yaxis.get_major_ticks()
yticks[0].label1.set_visible(False)

However this removed the first and last ticks from the y axis like so:

Does anyone have an idea about how to do this? Any help would be greatly appreciated.

EDIT: Added more example code

import matplotlib
import matplotlib.pyplot as plt
fig = plt.figure()
ax = fig.add_subplot(111)
plt.xlabel(xlab)
plt.ylabel(ylab)
ax.spines["right"].set_color('none')
ax.xaxis.set_ticks_position('top')
ax.yaxis.set_ticks_position('left')
ax.spines["bottom"].set_color('none')
ax.xaxis.set_label_position('top')
ax.spines['left'].set_color('black')
ax.spines['top'].set_color('black')
ax.tick_params(colors='black')
xticks = ax.xaxis.get_major_ticks()
xticks[0].label1.set_visible(False)
yticks = ax.yaxis.get_major_ticks()
yticks[-1].label1.set_visible(False)
for x, y in all:
    ax.plot(x, y, 'ro')

Answer 1

Why not simply doing

ax.set_xticks(ax.get_xticks()[1:])
ax.set_yticks(ax.get_yticks()[:-1])

with ax being the axis object.

Answer 2

You were almost there. The origin of the y axis is at the bottom. This means that the tick that you want to delete, being at the top, is the last one, that is yticks[-1]:

yticks[-1].set_visible(False)

Answer 3

ax.xaxis.get_major_ticks()[0].draw = lambda *args:None
ax.yaxis.get_major_ticks()[-1].draw = lambda *args:None