我尝试使用 select count(*) from output
读取图像，但流程只是在那里阻塞并且永不返回，试图读取已经存在的文件，但是出现了同样的问题，不确定原因是什么
cv2.imread() 注释：这是一个在@app.route('/api/upload', methods=['GET', 'POST'])
def upload_file():
print('request method is {}'.format(request.method))
if request.method == 'POST':
# check if the post request has the file part
if 'file' not in request.files:
print('file not in request.files')
return redirect(request.url)
file = request.files['file']
if file.filename == '':
print('filename is {}'.format(file.filename))
return redirect(request.url)
print(file and allowed_file(file.filename))
if file and allowed_file(file.filename):
print('receiving ... ', file.filename)
filename = secure_filename(file.filename)
ts = int(time.time())
file_name = file_name_template.format(ts, filename)
print(file_name)
filePath = os.path.join(app.root_path, app.config['UPLOAD_FOLDER'], file_name)
file.save(filePath)
print('reading image')
cv2.imread(filePath)
return 'done' #never executed
+ WAMP server
答案 0 :(得分：0)
我相信这已经在另一个posting中得到了解答。另请参见http://blog.rtwilson.com/how-to-fix-flask-wsgi-webapp-hanging-when-importing-a-module-such-as-numpy-or-matplotlib/。
基本上，它不是使用主解释器来运行cv2.imread，而后者在子解释器中无法正常运行。