![]() Subsequently, there may be a memory shortage, and we get the error. Now, there can be hundreds of MB of memory space required for that. While using the subprocess.Popen() we somehow call the fork instance, which means that we are creating a child process or subprocess, and it is going to consume the same amount of memory that is already getting consumed by the python. However, you may also get the error while using subprocess.Popen. Python subprocess.Popen “OSError: Cannot allocate memory” Recommended Ways to Print To Stderr in Python ![]() The only obstacle in this process is that it is slower whenever the CPU uses this swap memory because fetching data from the main memory is faster than a hard disk. It can be a feasible option and requires no extra cost for that. We need to assign 64 GB of swap memory to the system so that the CPU can use it whenever there is a requirement for that. The virtual memory is also called swap memory. The use of this virtual memory is that the CPU can store temporary files between the operations. This virtual memory is the part of hard disk memory allocated to work as the main memory( RAM). What we can do we create a virtual memory in our system. We necessarily need to extend our RAM as it is not a feasible option. Now, it may not be necessary to store intermediate files. In that case, we need to check for some other alternative. Now, increasing RAM memory may not be practically possible for everyone. The solution to the given error is that we need to increase the system’s memory space so that it can store the intermediate files there. Solution to Oserror: cannot allocate memory Now, when the system cannot save those files in the main memory due to unavailable space, it raises the given error. CPU fetches these files and variables from the main memory for further execution. These memory resources are used to store the intermediate files or variables created while executing our program. Any operation we perform on our computer requires some memory resources and some input/output devices. ![]() There is no other reason than mentioned above for the error. Why do I get “Oserror: cannot allocate memory” Error?
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