.pyplot has not attribute zlim

[SchroedingersLion]

If I run it, I get a plot as a result, but the zlim did not work and it gives:

Error:
"runfile('C:/Users/Rene/Desktop/Computational Physics/Project/Program/phase_diagram_N_hard_spheres/3D_plot.py', wdir='C:/Users/Rene/Desktop/Computational Physics/Project/Program/phase_diagram_N_hard_spheres')
Traceback (most recent call last):

  File "<ipython-input-2-5750a66114d4>", line 1, in <module>
    runfile('C:/Users/Rene/Desktop/Computational Physics/Project/Program/phase_diagram_N_hard_spheres/3D_plot.py', wdir='C:/Users/Rene/Desktop/Computational Physics/Project/Program/phase_diagram_N_hard_spheres')

  File "C:\ProgramData\Anaconda3\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 678, in runfile
    execfile(filename, namespace)

  File "C:\ProgramData\Anaconda3\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 106, in execfile
    exec(compile(f.read(), filename, 'exec'), namespace)

  File "C:/Users/Rene/Desktop/Computational Physics/Project/Program/phase_diagram_N_hard_spheres/3D_plot.py", line 26, in <module>
    plt.zlim(0,7.5)

AttributeError: module 'matplotlib.pyplot' has no attribute 'zlim'"

I am using Spyder.