Flask Python：上传csv文件并在应用程序中使用其数据
我是烧瓶新手，对烧瓶的工具不太熟悉。 所以，我试图上传一个CSV文件到我的应用程序；为了使用它的数据用Pygal绘制一些图形 这是我的尝试，但没有成功：Flask Python：上传csv文件并在应用程序中使用其数据,python,flask,Python,Flask,我是烧瓶新手，对烧瓶的工具不太熟悉。 所以，我试图上传一个CSV文件到我的应用程序；为了使用它的数据用Pygal绘制一些图形 这是我的尝试，但没有成功： def upload_file(): return render_template('upload.html') @app.route('/uploader', methods = ['GET', 'POST']) def upload(): if request.method == 'POST': f = reque
def upload_file():
return render_template('upload.html')
@app.route('/uploader', methods = ['GET', 'POST'])
def upload():
if request.method == 'POST':
f = request.files['file[]']
f.save(secure_filename(f.filename))
x= np.asarray(f)
graph = pygal.Line()
graph.title = '% Change Coolness of programming languages over time.'
graph.add('Graph', x[1,:])
graph_data = graph.render_data_uri()
return render_template("upload.html", graph_data = graph_data)
{% extends "layout.html" %}
{% block content %}
<body class="body">
<div class="container" align="left">
<embed type="image/svg+xml" src={{graph_data|safe}} style='max-width:1000px'/>
</div>
<form action = "http://localhost:5000/uploader" method = "POST" enctype = "multipart/form-data">
<input type = "file" name ="file" />
<input type = "submit"/>
</form>
</body>
{% endblock %}
{%extends“layout.html”%}
{%block content%}
{%endblock%}
@app.route('/upload')
def upload_file():
return render_template('upload.html')
@app.route('/uploader', methods = ['GET', 'POST'])
def upload():
if request.method == 'POST':
f = request.files['file']
f.save(secure_filename(f.filename))
data= genfromtxt(os.path.abspath(f.filename) , delimiter=',')
graph = pygal.Line()
if data.shape[1]==0:
graph.add('Data', data)
else:
graph.add('Data', data[1,:])
graph_data = graph.render_data_uri()
return render_template("upload.html", graph_data = graph_data)
x=np.asarray（f）asarraygenfromtxtcsv.csv