Hello I am a newbie of the platform especially in web development, I wrote a simple application that simply open an excel file and save and save an histogram in png format:
app = Flask(__name__, static_url_path='/static')
@app.route('/')
def home():
return render_template("index.html.j2")
@app.route('/', methods=['POST'])
def upload_file():
uploaded_file = request.files['file']
if uploaded_file.filename != '':
noheader = request.form['no header']
column = request.form['column']
if noheader == 'on' and column.isnumeric():
Data = pd.read_excel(uploaded_file, header=None)
wb = Fit_Normal_2P(failures=Data.iloc[:, int(column)].to_numpy(), show_probability_plot=False)
wb.distribution.PDF(label='stat')
histogram(Data.iloc[:, int(column)].to_numpy())
plt.savefig('/home/paullake85/mysite/templates/static/images/plot.png')
return render_template('plot.html', url='/static/images/plot.png')
else:
return redirect(url_for('home'))
the image is generated correctly and saved in my app space: '/home/****/mysite/templates/static/images/plot.png'
But the html code do not find the image and reply with error 404:
<!DOCTYPE html>
<html>
<head>
<title>Index</title>
</head>
<body>
<img src="{{url}}" alt="User Image">
</body>
</html>
Can someone explain me what's wrong with my html image viewer?
Thx
glenn
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PythonAnywhere staff
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