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I'm currently saving two matplotlib graphs to /static folder on a Flask application.

However, when they render in HTML. They both render the first image only. Not two separate images as I would expect. 

name_img_1 = 'static/1.png?%d' % time.time()
name_img_2 = 'static/2.png?%d' % time.time()

plt.plot( 'Time stamp 1', 'pred1', data=data, linestyle='-', marker='o')
plt.title(' classifier 1')
plt.axhline(y=0.55,label='Threshold (=0.55)')
plt.legend()
plt.savefig(name_img_1,format='png')

plt.plot( 'Time stamp 1', 'pred2', data=data, linestyle='-', marker='o')
plt.title(' classifier 1')
plt.axhline(y=0.55,label='Threshold (=0.72)')
plt.legend()
plt.savefig(name_img_2,format='png')




return render_template("hello.html",user_image=name_img_1,user_image_2=name_img_3,form=form)

HTML code 

<img src="{{ user_image }}" alt="User Image">
<img src="{{ user_image_2 }}" alt="User Imageq23">

I've tried creating two separate static folders and subdirectories but neither work.

Full code snippets

F.D
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1 Answers1

1

In your render_template statement you pass along the wrong name for user_image_2. As there is no name_image_3, jinja just ignores it

return render_template("hello.html",user_image=name_img_1,user_image_2=name_img_3,form=form)

Try

return render_template("hello.html",user_image=name_img_1,user_image_2=name_img_2,form=form)
Pekton
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