B \)@sdZddlZddlZddlZddlZddlZddlmZddlm Z m Z ddZ ddZ d d Z d d Zd dZddZddZddZdS)zQ Utilities for getting information about IPython and the system it's running in. N)release)_sysinfoencodingcCsNtjrdtjfStjdtjtj|dd}|\}}|rJd|dfSdS)aGet short form of commit hash given directory `pkg_path` We get the commit hash from (in order of preference): * IPython.utils._sysinfo.commit * git output, if we are in a git repository If these fail, we return a not-found placeholder tuple Parameters ---------- pkg_path : str directory containing package only used for getting commit from active repo Returns ------- hash_from : str Where we got the hash from - description hash_str : str short form of hash Z installationzgit rev-parse --short HEADT)stdoutstderrcwdshellZ repositoryascii)z (none found)z )rZcommit subprocessPopenPIPEZ communicatestripdecode)pkg_pathprocZ repo_commit_r4lib/python3.7/site-packages/IPython/utils/sysinfo.pypkg_commit_hashs   rc Cs8t|\}}ttj|||tjtjtjttjt j d S)zReturn dict describing the context of this package Parameters ---------- pkg_path : str path containing __init__.py for package Returns ------- context : dict with named parameters of interest ) Zipython_versionZ ipython_pathZ commit_sourceZ commit_hash sys_versionZsys_executableZ sys_platformplatformZos_nameZdefault_encoding) rdictrversionsys executablerosnamerZDEFAULT_ENCODING)rsrcZhshrrrpkg_infoDs rc Cs,tj}||||td}t|S)zBReturn useful information about IPython and the system, as a dict.z..)rpathrealpathdirnameabspathjoin__file__r)prrrr get_sys_info_sr&cCs ttS)auReturn useful information about IPython and the system, as a string. Examples -------- :: In [2]: print(sys_info()) {'commit_hash': '144fdae', # random 'commit_source': 'repository', 'ipython_path': '/home/fperez/usr/lib/python2.6/site-packages/IPython', 'ipython_version': '0.11.dev', 'os_name': 'posix', 'platform': 'Linux-2.6.35-22-generic-i686-with-Ubuntu-10.10-maverick', 'sys_executable': '/usr/bin/python', 'sys_platform': 'linux2', 'sys_version': '2.6.6 (r266:84292, Sep 15 2010, 15:52:39) \n[GCC 4.4.5]'} )pprintZpformatr&rrrrsys_infoesr(cCs tdS)z2Return the number of active CPUs on a Unix system.SC_NPROCESSORS_ONLN)rsysconfrrrr_num_cpus_unixysr+cCs tjdddgtjd}|jS)z4Return the number of active CPUs on a Darwin system.Zsysctlz-nzhw.ncpu)r)r r r rread)r%rrr_num_cpus_darwin~sr-cCs tjdS)z5Return the number of active CPUs on a Windows system.ZNUMBER_OF_PROCESSORS)renvirongetrrrr_num_cpus_windowssr0cCsFtttd}|tt}ytdt|}Wnd}YnX|S)aReturn the effective number of CPUs in the system as an integer. This cross-platform function makes an attempt at finding the total number of available CPUs in the system, as returned by various underlying system and python calls. If it can't find a sensible answer, it returns 1 (though an error *may* make it return a large positive number that's actually incorrect). )ZLinuxZDarwinZWindows)r+r-r0r/rsystemmaxint)Z ncpufuncsZncpufuncZncpusrrrnum_cpuss  r5)__doc__rrr'rr Z IPython.corerZ IPython.utilsrrrrr&r(r+r-r0r5rrrrs  &