Python Matplotlib Tutorial | Pyplot | Data visualization | class 12 | Installation | Implementation

In this tutorial, you will get to learn about matplotlib and its installation.
Key points are:
Pyplot
Data Visualisation
Multiple Views
Line Graph
Bar Graph
Pie Chart

[raghavendra]

Sir i am getting after running in shell prompt in ubuntu . How to resolve this .

import matplotlib.pyplot as plt
import numpy as np

# define data values
x = np.array([1, 2, 3, 4]) # X-axis points
y = x*2 # Y-axis points

plt.plot(x, y) # Plot the chart
plt.show()

python plot_graph1.py
Traceback (most recent call last):
File "plot_graph1.py", line 1, in <module>
import matplotlib.pyplot as plt
File "/usr/local/lib/python3.7/site-packages/matplotlib/pyplot.py", line 2372, in <module>

File "/usr/local/lib/python3.7/site-packages/matplotlib/pyplot.py", line 207, in switch_backend
backend_mod =
File "/usr/local/lib/python3.7/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "/usr/local/lib/python3.7/site-packages/matplotlib/backends/backend_tkagg.py", line 1, in <module>
from . import _backend_tk
File "/usr/local/lib/python3.7/site-packages/matplotlib/backends/_backend_tk.py", line 5, in <module>
import tkinter as Tk
File "/usr/local/lib/python3.7/tkinter/__init__.py", line 36, in <module>
import _tkinter # If this fails your Python may not be configured for Tk
ModuleNotFoundError: No module named '_tkinter'