[FIXED] matplotlib date as data, becoming gebrish

Issue

I'm trying to plot some date in matplotlib:

plt.ylabel("Word Frequency")
plt.xlabel("Date")

x_values = [datetime.datetime.strptime(key,"%Y-%m-%d").date() for key in final]
y_values = [9,2,9,4,5,6,7,8,9]

plt.xticks(rotation=90)
plt.plot(x_values,y_values)

plt.show()

This code is quite simple, but the result is seriously odd-looking:

When I did a print(x_values), I got :

[datetime.date(2021, 4, 28), datetime.date(2021, 4, 20), datetime.date(2021, 5, 8), datetime.date(2021, 4, 29), datetime.date(2021, 4, 14), datetime.date(2021, 5, 11), datetime.date(2021, 5, 4), datetime.date(2021, 4, 26), datetime.date(2021, 5, 2)]

And these values don't even reassemble the values plotted.

Solution

Mainly un-sorted list was the problem:

x_values = [datetime.datetime.strptime(key,"%Y-%m-%d").date() for key in final]
x_values.sort()
y_values = [9,2,9,4,5,6,7,8,9]

Answered By - Maifee Ul Asad