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Causes of Memory Leaks in Python | How to Avoid it?

Memory leaks in Python are an important issue. Even when writing code for any programming language, memory is one of the most important parts. A programmer learns to interact with memory at a minimum level. It helps to maintain the efficient work of a program. Programmers often have to contend with problems like memory leaks. Memory leaks are terrible because they block memory resources and reduce the performance of applications. Programs usually run out of memory due to unused references that were not deleted. This issue occurs when the garbage store cannot clear unpublished data from a program.

Python language is prone to such memory leaks. Therefore, it becomes a challenge for programmers and developers to identify and solve errors. Keep reading this article if you want to know more about the causes and solutions to memory leaks.

Memory Leaks

Memory leakage in the device, or memory strain, can come in several ways. We typically treat them as glitches, but in design choices, their root cause can also be.

As we build our framework under evolving design concepts, it is not assumed that such aspects are of significance and that is okay. Building the system in a way that prevents unnecessary optimizations is more important and helps you to execute them later as the code matures, rather than over-designing it from the get-go. Nevertheless, some typical instances of having memory overload difficulties materialize are:

In Go, specifying a global attribute, an array, and appending data to that array is the best way to establish a memory leak. The case is represented in a positive way by this great blog post.

Why am I writing the story, then? I noticed several resources for memory leakage while I was investigating this case. In fact, however, systems have over 50 lines of code and a single structure. In such instances, it is far more difficult to locate the root of a memory challenge than what the example explains.

The main causes of Memory Leaks in Python

Python has a built-in detector that ensures that self-referring objects and unused data are eventually collected garbage.

In theory, this means that there is no need for programmers to take care of the allocation of the program and the disposal of memory. CPython will automatically take care of this by notifying the garbage collector to remove unused data from runtime memory.

However, this does not happen. After all, programs run out of memory because of the references held. Sporadically, garbage collectors fail to monitor unrestricted objects. This is how memory leaks occur in Python. Gradually, the program is filled with memory leaks and exits memory. Figuring out where programs are leaking or using memory is a big challenge for programmers.

In short, memory leaks occur when unused objects stack up, and programmers forget to remove them. To detect and fix these problems, programmers need to do some memory profiling. This is the process through which the memory used by each piece of code is measured.

Memory profiling is not as complicated as it can be sound. Basic memory profiling is extremely easy. Below are the steps for profiling, analyzing, and fixing Python code to quickly detect memory leaks in profile parts.


Python is one of the most efficient and best programming languages in the world. It is an easy language designed for the readability of the mind. In many big projects like Google and Youtube, their code is written in this language. Like other languages, Python often has memory leaks. Its built-in detector, Cpthon, helps in memory management. However, memory leakage sometimes occurs due to some unresolved issues.

Resolving this issue is a challenge for us programmers. By tracking the memory usage of the object and using the memory management model, the program's memory footprint can be significantly reduced. Python's efficient memory tracking tool, TraceMolo, can quickly detect and fix memory leaks. So, being aware of the methods mentioned above, can help us solve programmers' memory leaks quickly.

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