{"kind":"task","effective_mode":"full","benchmark":{"kind":"benchmark","effective_mode":"full","slug":"ds-1000","formal_name":"DS-1000","introduction":"DS-1000 builds 1,000 data-science problems from real StackOverflow questions across seven libraries including NumPy, Pandas and Matplotlib. The problems are perturbed so that recalling the original answer does not solve them.","introduction_ja":"","introduction_en":"","category":"Category not supplied","task_count":null,"acquisition_status":"Acquisition status not supplied","official_url":"https://ds1000-code-gen.github.io/","indexing_mode":"index","profile":{"resources":[],"task_format":"","scoring":"","metric":"","size":"","answer_access":"","license":"","citation":"","maintainer":"","released":"","why_hard":"","related":[],"history":"","construction":"","limitations":"","saturation":"","scores":[]}},"task_id":"96a10ffe-3d36-592c-b4d6-ab8a48a8e0de","task_key":"default--test--451","task_revision_id":"1","upstream_id":"451","short_description":"I want to make an 4 dimensional array of zeros in python. I know how to do this…","config":"default","split":"test","body":"{\"library\":\"Numpy\",\"prompt\":\"Problem:\\nI want to make an 4 dimensional array of zeros in python. I know how to do this for a square array but I want the lists to have different lengths.\\nRight now I use this:\\narr = numpy.zeros((20,)*4)\\nWhich gives them all length 20 but I would like to have arr's lengths 20,10,10,2 because now I have a lot of zeros in arr that I don't use\\nA:\\n<code>\\nimport numpy as np\\n</code>\\narr = ... # put solution in this variable\\nBEGIN SOLUTION\\n<code>\\n\"}","display_format":"code","language":"","answer_status":"published","assets":[],"source_url":"https://ds1000-code-gen.github.io/","history":"initial import","indexing_mode":"index","subproblems":[],"grids":[]}