def analysis():
file = request.files['file']
csv_lines = []
for line in file.stream.readlines():
csv_lines.append(line.decode('utf-8'))
# if there is no directory, then create
if not os.path.isdir("csv"):
os.makedirs("csv")
# save csv in local directory
with open('csv/upload.csv', 'w') as f:
writer = csv.writer(f, lineterminator='\n')
writer.writerows(csv.reader(csv_lines, delimiter=",", quotechar='"'))
# analysis
figure = Figure('csv/upload.csv')
figure.make()
return render_template('index.html')
