title: trying to have a label hidden, yet have it reappear with a button click using python tkinter. The widgets are arranged using .place
body: <p>Here is a snippet of my code. Basically, I have a text label that I want to hide until the button is clicked. Upon pressing the button, the label should appear. I am able to have the button run the other functions, but not place the label back on screen. Any ideas why this isn't working?</p>
  <pre><code>Mg_to_Use = Label(frame1, text = &quot;The Mg needed for \
  the above solution volume is:&quot;, 
  font =  DialogFont, fg = &quot;blue&quot;)
  Mg_to_Use.place_forget(relx = .5, rely = .46, anchor = 'center')
  
  myButton1 = Button(frame1, text = &quot;Submit&quot;,
  command = lambda: [Mg_to_Use.place(relx = .5, rely = .46, anchor = 'center'), Mg_calc(), MgToGrams(), Mg2Use()],
  font =  DialogFont, fg = &quot;green&quot;) 
  myButton1.place(relx = .5, rely = .35, anchor = 'center')
  </code></pre>