Update app.py

app.py

@@ -61,8 +61,11 @@ with st.form('get signature'):
     remove_old_vcf()
     
     sub=st.form_submit_button('submit input')
-    
-if sub and file_to_lookat !=[]:   
+
+if sub:
+  st.session_state.submitted = True
+
+if 'submitted' in st.session_state and file_to_lookat !=[]:    
     #if st.button('get reference genome'):
     st.write(os.path.dirname(SigProfilerMatrixGenerator.__file__))
     dirtest=os.path.dirname(SigProfilerMatrixGenerator.__file__)
@@ -101,9 +104,8 @@ if sub and file_to_lookat !=[]:
         sig.sigProfilerExtractor("vcf", "output", "input", minimum_signatures=1, maximum_signatures=3,nmf_test_conv= 1000,nmf_tolerance= 1e-10,max_nmf_iterations=100000,min_nmf_iterations= 1000)
    
   #show_pdf('output/SBS96/Suggested_Solution/COSMIC_SBS96_Decomposed_Solution/SBS96_Decomposition_Plots.pdf')
-    with st.form('signatures'):
-        dl(file_to_lookat)   
-        sig=st.form_submit_button('use the above buttons to download the signatures') 
+      dl(file_to_lookat)   
+
     components.iframe("https://cancer.sanger.ac.uk/signatures/sbs/", height=3000,width=800)
      #show_pdf('output/ID83/Suggested_Solution/COSMIC_ID83_Decomposed_Solution/ID83_Decomposition_Plots.pdf')
     components.iframe("https://cancer.sanger.ac.uk/signatures/id/",height=3000,width=800)