Timestamp is undefined

[snippsat]

what can I do to modify that line so that it runs as an Python script?

There must be someway to modify it.

Look at this post again.
There i use plt.show() to show it as image(png) when run as a script outside of NoteBook.

plt.plot(x,y, label='Loaded from file!')
plt.xlabel('x')
plt.ylabel('y')
plt.title('Graph x y')
plt.legend(loc='upper left', shadow=True, fontsize='large')
plt.show()

Inside NoteBook it's one line,if not doing any modification to Graph.

df.plot(x='x_data', y='y_data' figsize=(7 ,3)