Test server that accepts GET/POST calls using Python Flask

I was trying out Flask. In the process, I made a website that behaves like a server. It can help you test GET and POST calls.

It goes like this .

from flask import Flask, request
    app = Flask(__name__)
    @app.route('/method', methods=['GET', 'POST'])
    @app.route('/method/<wish>', methods=['GET', 'POST'])
    def method_used(wish=None):
        if request.method == 'GET':
            if wish:
                if wish in dir(request):
                    ans = None
                    s = "ans = str(request.%s)" % wish
                    exec s
                    return ans
                    return 'This wish is not available. The following are the available wishes: %s' % [method for method in dir(request) if '_' not in method]
                return 'This is just a GET method'
            return "You are using POST"

When I run this, this follows:
C:\Python27\python.exe E:/Arindam/Projects/Flask_Practice/first.py
 * Restarting with stat
 * Debugger is active!
 * Debugger PIN: 581-155-269
 * Running on (Press CTRL+C to quit)
Now lets try some calls. I am using the browser.
This is just a GET method
This wish is not available. The following are the available wishes: ['application', 'args', 'authorization', 'blueprint', 'charset', 'close', 'cookies', 'data', 'date', 'endpoint', 'environ', 'files', 'form', 'headers', 'host', 'json', 'method', 'mimetype', 'module', 'path', 'pragma', 'range', 'referrer', 'scheme', 'shallow', 'stream', 'url', 'values']
{'wsgi.multiprocess': False, 'HTTP_COOKIE': 'csrftoken=YFKYYZl3DtqEJJBwUlap28bLG1T4Cyuq', 'SERVER_SOFTWARE': 'Werkzeug/0.12.2', 'SCRIPT_NAME': '', 'REQUEST_METHOD': 'GET', 'PATH_INFO': '/method/environ', 'SERVER_PROTOCOL': 'HTTP/1.1', 'QUERY_STRING': '', 'werkzeug.server.shutdown': , 'HTTP_USER_AGENT': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.71 Safari/537.36', 'HTTP_CONNECTION': 'keep-alive', 'SERVER_NAME': '', 'REMOTE_PORT': 49569, 'wsgi.url_scheme': 'http', 'SERVER_PORT': '5000', 'werkzeug.request': , 'wsgi.input': , 'HTTP_HOST': '', 'wsgi.multithread': False, 'HTTP_UPGRADE_INSECURE_REQUESTS': '1', 'HTTP_ACCEPT': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,/;q=0.8', 'wsgi.version': (1, 0), 'wsgi.run_once': False, 'wsgi.errors': ', mode 'w' at 0x0000000002042150>, 'REMOTE_ADDR': '', 'HTTP_ACCEPT_LANGUAGE': 'en-US,en;q=0.8', 'HTTP_ACCEPT_ENCODING': 'gzip, deflate, sdch, br'}

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