Python os.sysconf_names用法及代码示例

用法：

Python3

# Python program to explain os.sysconf_names object
   
# importing os module 
import os
# importing pprint module
import pprint
# Get the dictionary mapping of
# names accepted by os.sysconf() method
# to their corresponding integer values
# defined by host OS
names = os.sysconf_names
# print the dictionary mapping
# using pprint
print("The list of names known to the operating system:")
pprint.pprint(names, width = 1, height = 1)

The list of names known to the operating system:
{'SC_2_CHAR_TERM': 95,
 'SC_2_C_BIND': 47,
 'SC_2_C_DEV': 48,
 'SC_2_C_VERSION': 96,
 'SC_2_FORT_DEV': 49,
 'SC_2_FORT_RUN': 50,
 'SC_2_LOCALEDEF': 52,
 'SC_2_SW_DEV': 51,
 'SC_2_UPE': 97,
 'SC_2_VERSION': 46,
 'SC_AIO_LISTIO_MAX': 23,
 'SC_AIO_MAX': 24,
 'SC_AIO_PRIO_DELTA_MAX': 25,
 'SC_ARG_MAX': 0,
 'SC_ASYNCHRONOUS_IO': 12,
 'SC_ATEXIT_MAX': 87,
 'SC_AVPHYS_PAGES': 86,
 'SC_BC_BASE_MAX': 36,
 'SC_BC_DIM_MAX': 37,
 'SC_BC_SCALE_MAX': 38,
 'SC_BC_STRING_MAX': 39,
 'SC_CHARCLASS_NAME_MAX': 45,
 'SC_CHAR_BIT': 101,
 'SC_CHAR_MAX': 102,
 'SC_CHAR_MIN': 103,
 'SC_CHILD_MAX': 1,
 'SC_CLK_TCK': 2,
 'SC_COLL_WEIGHTS_MAX': 40,
 'SC_DELAYTIMER_MAX': 26,
 'SC_EQUIV_CLASS_MAX': 41,
 'SC_EXPR_NEST_MAX': 42,
 'SC_FSYNC': 15,
 'SC_GETGR_R_SIZE_MAX': 69,
 'SC_GETPW_R_SIZE_MAX': 70,
 'SC_INT_MAX': 104,
 'SC_INT_MIN': 105,
 'SC_IOV_MAX': 60,
 'SC_JOB_CONTROL': 7,
 'SC_LINE_MAX': 43,
 'SC_LOGIN_NAME_MAX': 71,
 'SC_LONG_BIT': 106,
 'SC_MAPPED_FILES': 16,
 'SC_MB_LEN_MAX': 108,
 'SC_MEMLOCK': 17,
 'SC_MEMLOCK_RANGE': 18,
 'SC_MEMORY_PROTECTION': 19,
 'SC_MESSAGE_PASSING': 20,
 'SC_MQ_OPEN_MAX': 27,
 'SC_MQ_PRIO_MAX': 28,
 'SC_NGROUPS_MAX': 3,
 'SC_NL_ARGMAX': 119,
 'SC_NL_LANGMAX': 120,
 'SC_NL_MSGMAX': 121,
 'SC_NL_NMAX': 122,
 'SC_NL_SETMAX': 123,
 'SC_NL_TEXTMAX': 124,
 'SC_NPROCESSORS_CONF': 83,
 'SC_NPROCESSORS_ONLN': 84,
 'SC_NZERO': 109,
 'SC_OPEN_MAX': 4,
 'SC_PAGESIZE': 30,
 'SC_PAGE_SIZE': 30,
 'SC_PASS_MAX': 88,
 'SC_PHYS_PAGES': 85,
 'SC_PII': 53,
 'SC_PII_INTERNET': 56,
 'SC_PII_INTERNET_DGRAM': 62,
 'SC_PII_INTERNET_STREAM': 61,
 'SC_PII_OSI': 57,
 'SC_PII_OSI_CLTS': 64,
 'SC_PII_OSI_COTS': 63,
 'SC_PII_OSI_M': 65,
 'SC_PII_SOCKET': 55,
 'SC_PII_XTI': 54,
 'SC_POLL': 58,
 'SC_PRIORITIZED_IO': 13,
 'SC_PRIORITY_SCHEDULING': 10,
 'SC_REALTIME_SIGNALS': 9,
 'SC_RE_DUP_MAX': 44,
 'SC_RTSIG_MAX': 31,
 'SC_SAVED_IDS': 8,
 'SC_SCHAR_MAX': 111,
 'SC_SCHAR_MIN': 112,
 'SC_SELECT': 59,
 'SC_SEMAPHORES': 21,
 'SC_SEM_NSEMS_MAX': 32,
 'SC_SEM_VALUE_MAX': 33,
 'SC_SHARED_MEMORY_OBJECTS': 22,
 'SC_SHRT_MAX': 113,
 'SC_SHRT_MIN': 114,
 'SC_SIGQUEUE_MAX': 34,
 'SC_SSIZE_MAX': 110,
 'SC_STREAM_MAX': 5,
 'SC_SYNCHRONIZED_IO': 14,
 'SC_THREADS': 67,
 'SC_THREAD_ATTR_STACKADDR': 77,
 'SC_THREAD_ATTR_STACKSIZE': 78,
 'SC_THREAD_DESTRUCTOR_ITERATIONS': 73,
 'SC_THREAD_KEYS_MAX': 74,
 'SC_THREAD_PRIORITY_SCHEDULING': 79,
 'SC_THREAD_PRIO_INHERIT': 80,
 'SC_THREAD_PRIO_PROTECT': 81,
 'SC_THREAD_PROCESS_SHARED': 82,
 'SC_THREAD_SAFE_FUNCTIONS': 68,
 'SC_THREAD_STACK_MIN': 75,
 'SC_THREAD_THREADS_MAX': 76,
 'SC_TIMERS': 11,
 'SC_TIMER_MAX': 35,
 'SC_TTY_NAME_MAX': 72,
 'SC_TZNAME_MAX': 6,
 'SC_T_IOV_MAX': 66,
 'SC_UCHAR_MAX': 115,
 'SC_UINT_MAX': 116,
 'SC_UIO_MAXIOV': 60,
 'SC_ULONG_MAX': 117,
 'SC_USHRT_MAX': 118,
 'SC_VERSION': 29,
 'SC_WORD_BIT': 107,
 'SC_XBS5_ILP32_OFF32': 125,
 'SC_XBS5_ILP32_OFFBIG': 126,
 'SC_XBS5_LP64_OFF64': 127,
 'SC_XBS5_LPBIG_OFFBIG': 128,
 'SC_XOPEN_CRYPT': 92,
 'SC_XOPEN_ENH_I18N': 93,
 'SC_XOPEN_LEGACY': 129,
 'SC_XOPEN_REALTIME': 130,
 'SC_XOPEN_REALTIME_THREADS': 131,
 'SC_XOPEN_SHM': 94,
 'SC_XOPEN_UNIX': 91,
 'SC_XOPEN_VERSION': 89,
 'SC_XOPEN_XCU_VERSION': 90,
 'SC_XOPEN_XPG2': 98,
 'SC_XOPEN_XPG3': 99,
 'SC_XOPEN_XPG4': 100}