pyarrow.create_memory_map#

pyarrow.create_memory_map(path,size)#

Create a file of the given size and memory-map it.

Parameters:

pathstr

The file path to create, on the local filesystem.

sizeint

The file size to create.

Returns:

mmapMemoryMappedFile

Examples

Create a file with a memory map:

>>>importpyarrowaspa>>>withpa.create_memory_map('example_mmap_create.dat',27)asmmap:...mmap.write(b'Create a memory-mapped file')...mmap.read_at(10,9)...27b'memory-map'