STACK_OVERFLOW | web application similar to Stackoverflow | Application Framework library

I faced a similar issue when playing around with coroutines. I am not 100% certain of the reason why the stack builds up but this is what I think might happen.

First of all, I don't think symmetric transfer is a given, it depends on compiler optimization and in some cases it might be difficult for the compiler to make this tail-call transformation. One of the reason could be because of the non-trivial destructor that lays in another compilation unit for Type (this is just a guess).

Reading the blog post you mentioned, it says: "The bool-returning version, however, can have a slight win in terms of optimisability in some cases compared to the symmetric-transfer form.", so it might be because compiler support is not fully mature yet (?) and it might be a good alternative to try the bool-returning form instead.

I would love to have a good answer on this problem as well, just trying to give my opinion based on my current finding at the moment, so please don't take this answer as absolute truth.

Edit:

Here is a workaround that prevents the stack-overflow. It uses the bool-returning version of the await_suspend() function. Unfortunately, the workaround introduces other problems. For example, the Task type is not thread-safe anymore. For further information look at the section "The Coroutines TS solution" of the blog post C++ Coroutines: Understanding Symmetric Transfer.

This is how you can delete item from list by the idx index value:

I know this is not an easy solution. It's something I am hoping to improve upon in a future update (allowing custom functions for categorical data).

To get what you're looking for, let's start by defining two functions to give the 95% CI about rates and means.

No. From the YAML perspective, there is no need for this: Anchors & aliases are used for referring to the same node multiple times. Therefore, there will always be a first occurrence of the node which can be anchored, and subsequent occurrences can use an alias.

From a user perspective, anchors & aliases can be used a bit like variables. While this works, it is not the intended use case and therefore poorly supported (e.g. you can't concatenate an alias value with other scalar content).

This problem is usually solved by using a templating engine. Many power users of YAML (Ansible, SaltStack etc) use some templating engine to pre-process the YAML before parsing it.

You can use a defaultdict to grab all the values while making sure not to have duplicates and average out all values with a dict comprehension.

• Tested in pandas 1.2.1
• Don't use tracks.columns.values[1] = "artist" to rename columns by index assignment because it results in inconsistent behavior.
  • If you remove or comment out the two lines with tracks.head() the code works.
  • However, if you have tracks.head() or print(tracks.head(), then the KeyError occurs.
• Use pandas.DataFrame.rename
  • tracks = tracks.rename(columns={'artist.inverted': 'artist'})

• Code in one file as follows
• With print(tracks.head(2))

As I see your code you saved question_image_url to this.state, and I think we dont have to save it to state as we use state to render JSX. Once you got url in callback then why don't you run saving to firestore in callback? And you used firestore().collection().doc().set, this works wrong. you should indicate the doc_id to set because set is updating function of current doc_id. If you want to add new doc then you can use add function from collection that wrapps whole docs.

If you're trying to test ChildClass, you should path it, not the parent in different module.

Heuristincs with mocking:

1. Patch what you test
2. Patch as close to target function as possible

The reason why patch in your case isn't working is that python will not re-evaluate modules & class hierarchy after patch. And as python is dynamic, what's happening is

1. Parent class evaluated
2. Child class evaluated with reference to parent class object
3. You patch parent class in parent module, but testing code in actual_function, and ChildClass there is referencing old original Parent, because mock is actually changing object attributes of Parent in parent.py namespace.

Also, take a look at mock documentation on patching point

Example for your case:

I don't think you can properly test performance from GHCi, no matter what flags you try to use.

In general, the best way to do performance testing of Haskell code is to use the Criterion benchmarking library and compile with ghc -O2. Converted to a Criterion benchmark, your program looks like this: