unrepeat | The missing inverse of the javascript 's repeat method

Need to generate 20 million unrepeatable random numbers with 8 characters length and save it in an array. I try with multiprocessing,threading but it stays slow.

Try with multiprocessing:

I'm trying to avoid touching a shared dev database in my workflow; to make this easier, I want to have Docker image definitions on my disk for the schemas I need. I'm stuck however at making a Dockerfile that will create a Postgres image with the dump already restored. My problem is that while the Docker image is being built, the Postgres server isn't running.

While messing around in the container in a shell, I tried starting the container manually, but I'm not sure what the proper way to do so. /docker-entrypoint.sh doesn't seem to do anything, and I can't figure out how to "correctly" start the server.

So what I need to do is:

• start with "FROM postgres"
• copy the dump file into the container
• start the PG server
• run psql to restore the dump file
• kill the PG server

(Steps I don't know are in italics, the rest is easy.)

What I'd like to avoid is:

• Running the restore manually into an existing container, the whole idea is to be able to switch between different databases without having to touch the application config.
• Saving the restored image, I'd like to be able to rebuild the image for a database easily with a different dump. (Also it doesn't feel very Docker to have unrepeatable image builds.)

In Facebook Android sdk's get started guides, they define two ways to add the dependency to your project. In the Getting Started section, the line in gradle is

I'm making a function that removes elements that occur two or more times in a row in a list. It replaces them with one occurrence. I'm using only recursion and pattern matching (no library list functions).

Examples of how the function should work:

• unrepeat [True,True,True,True] --> [True]
• unrepeat [1,1,2,1,3,3,3] --> [1,2,1,3]

What I have so far:

This is my build.gradle app-level file.

I'm running pyspark2 over spark 2.0.0

Considering stable and constant dataset loaded into Dataframe, I do drop duplicates by certain column:

In my project that based on asyncio and asyncio tcp connections that debugs with PyCharm debugger I got very and very very absurd errors.

If I put breakpoint on code after running, the breakpoint never fires. But breakpoints fires if breakpoint has been put before starting program.

But in some cases the firing on breakpoints causes strange errors (if paused on breakpoint and resumed).

The next exceptions I remarked:

1. TypeError: 'coroutine' object not callable
2. SystemError: unknown opcode

First exception is very rare. Can be raised in any place on code and unrepeatable. Second exception I remarked the first time recently. This is repeatable in my code. The function where I put breakpoint is function in async task (asyncio.Task). I can't repeat from scratch. But I think the type of exception (unknown opcode??? O_O) should make you think. Besides! The exception vanished if I change the code: for example I added the a = 0 line. Exception not raised after. The deleting a = 0 will return this exception again.

Is this error of kind of esoteric errors?

I think the PyCharm debugger conflicts with asnycio. Or maybe I doing something wrong?

Unknown opcode can be any line of code in the function where breakpoint put. Repeats in specific places in code.

This exception also can be at line, but also inside another function. Very rare and unreproducible

I have a problem with a function which should write into the array unrepeatable random numbers from range passed by user. I tried found error, and I realized it must be something with second loop for (counter j), I know that it is infinite loop but I don't know why. I know it is a simple exercise, but I really don't have any idea. Thanks guys for help.