check the memory usage in python

to check the memory usage in python, you can use the `psutil` library, which provides an easy way to retrieve information on system utilization, such as cpu, memory, disks, network, and sensors.

here is a step-by-step tutorial on how to check memory usage in python using `psutil`:

1. install `psutil` library:
you can install the `psutil` library using `pip` by running the following command in your terminal or command prompt:

2. import the `psutil` library in your python script:

3. retrieve memory usage information:
- `total`: total physical memory available.
- `available`: the memory that can be given instantly to processes without the system going into swap.
- `percent`: the percentage usage calculated as `(total - available) / total * 100`.
- `used`: memory used, calculated differently depending on the platform and designed to be used for informational purposes only.
- `free`: memory not being used at all (zeroed) that is readily available.

4. example code:
here is an example code snippet that demonstrates how to check memory usage in python using the `psutil` library:

by following these steps and running the provided code example, you can easily check the memory usage in python using the `psutil` library.

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