thomasnield / oreilly_reactive_python_for_data

Resources for the O'Reilly online video "Reactive Python for Data"

Resources for the O'Reilly Media online video as well as webcast Reactive Python for Data Science.

)

oreilly_reactive_python_for_data's Issues

Error: in <module> .subscribe(lambda s: print(s))

I run file 4.4A_twitter_observable.py (original content, no touch)
It makes exception/error

/Users/donhuvy/vy_temp/funny_api/venv/bin/python /Users/donhuvy/vy_temp/funny_api/4.4A_twitter_observable.py
Traceback (most recent call last):
  File "/Users/donhuvy/vy_temp/funny_api/4.4A_twitter_observable.py", line 40, in <module>
    .subscribe(lambda s: print(s))
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observablebase.py", line 83, in subscribe
    current_thread_scheduler.schedule(set_disposable)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/concurrency/currentthreadscheduler.py", line 50, in schedule
    return self.schedule_relative(timedelta(0), action, state)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/concurrency/currentthreadscheduler.py", line 67, in schedule_relative
    Trampoline.run(queue)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/concurrency/currentthreadscheduler.py", line 31, in run
    item.invoke()
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/concurrency/scheduleditem.py", line 17, in invoke
    ret = self.scheduler.invoke_action(self.action, self.state)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/concurrency/schedulerbase.py", line 14, in invoke_action
    ret = action(self, state)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observablebase.py", line 67, in set_disposable
    subscriber = self._subscribe_core(auto_detach_observer)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/anonymousobservable.py", line 20, in _subscribe_core
    return self._subscribe(observer)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/linq/observable/select.py", line 38, in subscribe
    return self.subscribe(on_next, observer.on_error, observer.on_completed)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observablebase.py", line 85, in subscribe
    set_disposable()
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observablebase.py", line 67, in set_disposable
    subscriber = self._subscribe_core(auto_detach_observer)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/anonymousobservable.py", line 20, in _subscribe_core
    return self._subscribe(observer)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/linq/observable/where.py", line 44, in subscribe
    return parent.subscribe(on_next, observer.on_error, observer.on_completed)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observablebase.py", line 85, in subscribe
    set_disposable()
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observablebase.py", line 67, in set_disposable
    subscriber = self._subscribe_core(auto_detach_observer)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/anonymousobservable.py", line 20, in _subscribe_core
    return self._subscribe(observer)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/linq/observable/select.py", line 38, in subscribe
    return self.subscribe(on_next, observer.on_error, observer.on_completed)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observablebase.py", line 85, in subscribe
    set_disposable()
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observablebase.py", line 67, in set_disposable
    subscriber = self._subscribe_core(auto_detach_observer)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/anonymousobservable.py", line 20, in _subscribe_core
    return self._subscribe(observer)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/linq/connectableobservable.py", line 49, in subscribe
    connectable_subscription[0] = source.connect()
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/linq/connectableobservable.py", line 29, in connect
    disposable = self.source.subscribe(self.subject)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observablebase.py", line 85, in subscribe
    set_disposable()
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observablebase.py", line 67, in set_disposable
    subscriber = self._subscribe_core(auto_detach_observer)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/anonymousobservable.py", line 20, in _subscribe_core
    return self._subscribe(observer)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/linq/observable/asobservable.py", line 17, in subscribe
    return source.subscribe(observer)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observablebase.py", line 85, in subscribe
    set_disposable()
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observablebase.py", line 67, in set_disposable
    subscriber = self._subscribe_core(auto_detach_observer)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/anonymousobservable.py", line 20, in _subscribe_core
    return self._subscribe(observer)
  File "/Users/donhuvy/vy_temp/funny_api/4.4A_twitter_observable.py", line 30, in observe_tweets
    stream.filter(track=topics)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/tweepy/streaming.py", line 445, in filter
    self._start(async)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/tweepy/streaming.py", line 361, in _start
    self._run()
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/tweepy/streaming.py", line 294, in _run
    raise exception
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/tweepy/streaming.py", line 249, in _run
    if self.listener.on_error(resp.status_code) is False:
  File "/Users/donhuvy/vy_temp/funny_api/4.4A_twitter_observable.py", line 23, in on_error
    observer.on_error(status)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observerbase.py", line 33, in on_error
    self._on_error_core(error)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/autodetachobserver.py", line 23, in _on_error_core
    self.observer.on_error(exn)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observerbase.py", line 33, in on_error
    self._on_error_core(error)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/autodetachobserver.py", line 23, in _on_error_core
    self.observer.on_error(exn)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/subjects/subject.py", line 75, in on_error
    observer.on_error(exception)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observerbase.py", line 33, in on_error
    self._on_error_core(error)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/autodetachobserver.py", line 23, in _on_error_core
    self.observer.on_error(exn)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observerbase.py", line 33, in on_error
    self._on_error_core(error)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/autodetachobserver.py", line 23, in _on_error_core
    self.observer.on_error(exn)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observerbase.py", line 33, in on_error
    self._on_error_core(error)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/autodetachobserver.py", line 23, in _on_error_core
    self.observer.on_error(exn)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observerbase.py", line 33, in on_error
    self._on_error_core(error)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/anonymousobserver.py", line 17, in _on_error_core
    self._error(error)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observerbase.py", line 33, in on_error
    self._on_error_core(error)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/autodetachobserver.py", line 23, in _on_error_core
    self.observer.on_error(exn)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observerbase.py", line 33, in on_error
    self._on_error_core(error)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/anonymousobserver.py", line 17, in _on_error_core
    self._error(error)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observerbase.py", line 33, in on_error
    self._on_error_core(error)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/autodetachobserver.py", line 23, in _on_error_core
    self.observer.on_error(exn)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observerbase.py", line 33, in on_error
    self._on_error_core(error)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/anonymousobserver.py", line 17, in _on_error_core
    self._error(error)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observerbase.py", line 33, in on_error
    self._on_error_core(error)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/autodetachobserver.py", line 23, in _on_error_core
    self.observer.on_error(exn)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/observerbase.py", line 33, in on_error
    self._on_error_core(error)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/core/anonymousobserver.py", line 17, in _on_error_core
    self._error(error)
  File "/Users/donhuvy/vy_temp/funny_api/venv/lib/python3.6/site-packages/rx/internal/basic.py", line 35, in default_error
    raise Exception(err)
Exception: 401

Process finished with exit code 1

Any plans to update this for Python 3.6, 3.7 and RxPy3?

This course is still advertised on O'Reilly but I wasted a lot of time with the very first lesson.

Observable.from_ is no longer valid, nor is from rx import Observer

https://stackoverflow.com/questions/53265156/python-rx-from-not-found-in-observable-observable

It's good that rxpy is now more like rxjs etc, but your course is now invalid unless you set a really old environment.

Add Jupyter notebook of class notes

Somebody in the class had a suggestion to package up the examples in a Jupyter notebook. This sounds like a helpful addition.