cntr | A container debugging tool based on FUSE | Continuous Deployment library

Trying to replace a number (20 with a variable $cntr=120) in a string using replace operator. But getting stuck with $cntr in the output. Where I am doing wrong? Any better solutions please.

Input string

I have to create one table based on several tables.

The result table contains several columns : some columns are taken directly from the source tables but other columns require more logic.

In the query below (short example of my problem) you have

I've been trying to implement multithreading on PyQT5 using QThreads. I want to display a video and update a set of labels at the same time(I used a counter as an example). From my research I found different ways to implement QThreads, it was recommended to use the following method instead of instantiating QTread and modifying run method, so I followed that advice. Here is my reduced code:

Is this the correct way to join a table to a different table based on type/value?

In my table, I have a column geo which can be 1, 2, or 3 and geo_id. Based on geo's type I want to join another table. The only solution if found so far is using union.

So I am working on a GUI (PyQt5) and I am multi-threading to be able to do data acquisition and real-time plotting concurrently.

Long story short, all works fine apart from stopping the thread that handles the data acquisition, which loops continuously and calls PySerial to read the com port. When a button on the GUI is pressed, I want to break the while loop within the thread so as to stop reading the com port and allow the com port to be closed safely.

Currently, none of the methods I have tried manage to gracefully exit the while loop inside the thread, which causes all kinds of errors with the PySerial library and the closed com port/ attempted reading in the thread. Here is what I have tried:

• Using a class variable (self.serial_flag) and changing its state when the button is pressed. The thread loop then looks like this: while self.serial_flag:
• Using a global variable (serial_flag = False at top of the script). Defining global serial_flag at the top of the threaded function and same condition: while serial_flag:
• Using a shared memory variable: from multiprocessing import Value, then defining serial_flag = Value('i', 0) then in the loop checking while serial_flag.value == 0:
• Using threading.Event to set an event and use that as a break condition. Defining: serial_flag = threading.Event() and inside the thread while loop: if serial_flag.is_set(): break

None of these seem to work in breaking the while loop and I promise I have done my homework in researching solutions for this type of thing - I feel like there is something basic that I am doing wrong with my multithreading application. Here are the parts of the GUI that call/ deal with the thread (with my latest attempt using threading.Event):

This question relates to PCRE regular expressions.

Part of my big dataset are address data like this:

In the following program I'm trying to calculate the value of Sin(x) and Cos(x) using series formula Sin(x),Cos(x) series respectively. But answer is always coming 0. I'm trying it to solve without using pointers. And if you can please explain in elaborative way as i'm a beginner into coding.

I have the following markup:

I have this image here with lots of small printer dots in the color cyan, magenta and yellow.

After separating the color channel (CMYK) I applied a threshold on the image.

Here for the color channel cyan.

Now I want to find a way to calculate the perimeter for each of these dots. So in the end I want to have a mean and standard deviation for the perimeter.

I already found a way (with the help from someone here on stackoverflow) to compute the mean and std dev for the sizes of the dots with: