Update app.py

app.py

@@ -59,7 +59,7 @@ with st.form('get signature'):
         refdownload=False    
     file_to_lookat=st.file_uploader('VCF upload here',type=[".vcf"],accept_multiple_files=True)
     remove_old_vcf()
-    dl(file_to_lookat)
+    
     sub=st.form_submit_button('submit input')
     
 if sub and file_to_lookat !=[]:   
@@ -101,8 +101,9 @@ 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') 
     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)