Changes between Initial Version and Version 1 of PepperWorkshop/GettingWwwInfo

Timestamp:

Feb 13, 2020, 2:20:03 PM (4 years ago)

Author:

hales

Comment:

--

PepperWorkshop/GettingWwwInfo

@@ +1 @@
+= [[https://is.muni.cz/auth/predmet/fi/pv277|PV277 Programming Applications for Social Robots]] (autumn 2019) =
+
+== How to get info from web?
+
+=== Use API
+If API exists, you can usually use JSON data after send the right parameters. Example to get weather data.
+
+{{{#!python
+import requests
+url = "http://api.openweathermap.org/data/2.5/weather"
+
+params = {'q': 'Brno',
+          'units': 'metric',
+          'lang': 'cz'}
+
+r = requests.get(url=url, params=params)
+data = r.json()
+
+print(data['main']['temp'])
+}}}
+
+(Full example [raw-attachment:forecast.py:wiki:en/ProgrammingRobotsCourse/GettingWwwInfo forecast.py]
+)
+
+=== Parse webpage data
+
+If no API is provided, you can download and parse the webpage.
+
+{{{#!python
+from bs4 import BeautifulSoup
+import requests
+page = requests.get(url).text
+soup = BeautifulSoup(page, features="lxml")
+results = soup.findAll('h2', attrs={'class':'article-title'})
+}}}
+
+(Full example [raw-attachment:news.py:wiki:en/ProgrammingRobotsCourse/GettingWwwInfo news.py])
+
+== How to integrate info with robot?
+
+=== Dialog variables
+
+In dialog file, set value of variable, use it in Python script in behavior.
+
+{{{#!python
+u:(["Můj [oblíbený nejoblíbenější] tým je" "Fandím {týmu}"] _*) $team=$1
+}}}
+
+First word after sentence is available in {{{$1}}} and passed to the script as {{{team}}} variable.
+
+{{{#!python
+def onInput_onStart(self, team):
+    self.team_usr = team
+}}}
+
+=== Use TTS in script
+{{{#!python
+veta = self.team_name + " má " + str(act_team.points) + " bodů"
+self.tts.say(veta)
+}}}
+
+=== Run script as service and parse service output
+
+Specify service script in manifest.xml:
+{{{#!xml
+<services>
+    <service autorun="true" execStart="/usr/bin/python2 scripts/rozvrh.py" name="rozvrh" />
+</services>
+}}}
+
+In dialog, detect variables, pass them to service, and parse call result to say answer:
+
+{{{
+u:(rozvrh) Pro jakou místnost bys chtěl znát rozvrh?
+    u1:({pro} {místnost učebnu} _~letter _~number) Podívám se na rozvrh pro $1 $2 ^call(Rozvrh.get_current_lesson($1, $2)) \pau=500\
+    c1:(In _* teaches _* course _*) V místnosti $1 je právě $3 s vyučujícím, který se jmenuje $2.
+    c1:(In _* currently _*) V místnosti $1 je právě $2
+}}}
+
+{{{u1}}} detects letter and number (concepts defined earlier in dialog) and calls {{{get_current_lesson()}}}. This function return strings, that are parsed in dialog and answer is translated to each locale.
+
+{{{#!python
+def get_current_lesson(self, letter, number):
+    room = letter+str(number)
+    lesson = self.rozvrh.find_current_lesson(room)
+    if lesson:
+        if lesson.teacher:
+            teacher = lesson.teacher.split(' ')[-1]
+            return "In %s teaches %s course %s" % (lesson.room, teacher, lesson.name)
+         else:
+            return "In %s currently %s" % (lesson.room, lesson.name)
+}}}
+
+
+=== Run script as service and use TTS in script
+
+Detect variables in dialog, pass them to script and let script use TTS to say answer.
+
+{{{
+u:("[řekni ukaž zobraz najdi] {mi} [odjezdy spoje] ze zastávky _~station_name")
+    ^call(DialogKordisbot.say_answer1($1))
+}}}
+
+Dialog detect word with station name and calls {{{say_answer1()}}}. No answer is passed back, answer is said directly in script.
+
+{{{#!python
+def say_answer1(self, station):
+    #get data finalDepartures
+    answer_msg = "First line {} goes to {} at {}, second line {} goes to {} at {}, third line {} goes to {} at {}".format(finalDepartures[0][0], finalDepartures[0][1], finalDepartures[0][2], finalDepartures[1][0], finalDepartures[1][1], finalDepartures[1][2], finalDepartures[2][0], finalDepartures[2][1], finalDepartures[2][2])
+
+    self.s.ALAnimatedSpeech.say(answer_msg)
+}}}
+
+
+== Examples
+
+Explore example applications in {{{/nlp/projekty/pepper/myapps}}}: 
+ * kordisbot
+ * sport_bot
+ * rozvrh