diff --git a/lib/assets/Lib/errno.py b/lib/assets/Lib/errno.py
new file mode 100644
--- /dev/null
+++ b/lib/assets/Lib/errno.py
@@ -0,0 +1,173 @@
+"""
+This module makes available standard errno system symbols.
+The value of each symbol is the corresponding integer value,
+e.g., on most systems, errno.ENOENT equals the integer 2.
+The dictionary errno.errorcode maps numeric codes to symbol names,
+e.g., errno.errorcode[2] could be the string 'ENOENT'.
+
+Symbols that are not relevant to the underlying system are not defined.
+
+To map error codes to error messages, use the function os.strerror(),
+e.g. os.strerror(2) could return 'No such file or directory'.
+"""
+
+errorcode= {1: 'EPERM', 2: 'ENOENT', 3: 'ESRCH', 4: 'EINTR', 5: 'EIO', 
+6: 'ENXIO', 7: 'E2BIG', 8: 'ENOEXEC', 9: 'EBADF', 10: 'ECHILD', 11: 'EAGAIN', 
+12: 'ENOMEM', 13: 'EACCES', 14: 'EFAULT', 15: 'ENOTBLK', 16: 'EBUSY', 
+17: 'EEXIST', 18: 'EXDEV', 19: 'ENODEV', 20: 'ENOTDIR', 21: 'EISDIR', 
+22: 'EINVAL', 23: 'ENFILE', 24: 'EMFILE', 25: 'ENOTTY', 26: 'ETXTBSY', 
+27: 'EFBIG', 28: 'ENOSPC', 29: 'ESPIPE', 30: 'EROFS', 31: 'EMLINK', 
+32: 'EPIPE', 33: 'EDOM', 34: 'ERANGE', 35: 'EDEADLOCK', 36: 'ENAMETOOLONG', 
+37: 'ENOLCK', 38: 'ENOSYS', 39: 'ENOTEMPTY', 40: 'ELOOP', 42: 'ENOMSG', 
+43: 'EIDRM', 44: 'ECHRNG', 45: 'EL2NSYNC', 46: 'EL3HLT', 47: 'EL3RST', 
+48: 'ELNRNG', 49: 'EUNATCH', 50: 'ENOCSI', 51: 'EL2HLT', 52: 'EBADE', 
+53: 'EBADR', 54: 'EXFULL', 55: 'ENOANO', 56: 'EBADRQC', 57: 'EBADSLT', 
+59: 'EBFONT', 60: 'ENOSTR', 61: 'ENODATA', 62: 'ETIME', 63: 'ENOSR', 
+64: 'ENONET', 65: 'ENOPKG', 66: 'EREMOTE', 67: 'ENOLINK', 68: 'EADV', 
+69: 'ESRMNT', 70: 'ECOMM', 71: 'EPROTO', 72: 'EMULTIHOP', 73: 'EDOTDOT', 
+74: 'EBADMSG', 75: 'EOVERFLOW', 76: 'ENOTUNIQ', 77: 'EBADFD', 78: 'EREMCHG', 
+79: 'ELIBACC', 80: 'ELIBBAD', 81: 'ELIBSCN', 82: 'ELIBMAX', 83: 'ELIBEXEC', 
+84: 'EILSEQ', 85: 'ERESTART', 86: 'ESTRPIPE', 87: 'EUSERS', 88: 'ENOTSOCK', 
+89: 'EDESTADDRREQ', 90: 'EMSGSIZE', 91: 'EPROTOTYPE', 92: 'ENOPROTOOPT', 
+93: 'EPROTONOSUPPORT', 94: 'ESOCKTNOSUPPORT', 95: 'ENOTSUP', 
+96: 'EPFNOSUPPORT', 97: 'EAFNOSUPPORT', 98: 'EADDRINUSE', 
+99: 'EADDRNOTAVAIL', 100: 'ENETDOWN', 101: 'ENETUNREACH', 102: 'ENETRESET', 
+103: 'ECONNABORTED', 104: 'ECONNRESET', 105: 'ENOBUFS', 106: 'EISCONN', 
+107: 'ENOTCONN', 108: 'ESHUTDOWN', 109: 'ETOOMANYREFS', 110: 'ETIMEDOUT', 
+111: 'ECONNREFUSED', 112: 'EHOSTDOWN', 113: 'EHOSTUNREACH', 114: 'EALREADY', 
+115: 'EINPROGRESS', 116: 'ESTALE', 117: 'EUCLEAN', 118: 'ENOTNAM', 
+119: 'ENAVAIL', 120: 'EISNAM', 121: 'EREMOTEIO', 122: 'EDQUOT', 
+123: 'ENOMEDIUM', 124: 'EMEDIUMTYPE', 125: 'ECANCELED', 126: 'ENOKEY', 
+127: 'EKEYEXPIRED', 128: 'EKEYREVOKED', 129: 'EKEYREJECTED', 
+130: 'EOWNERDEAD', 131: 'ENOTRECOVERABLE', 132: 'ERFKILL'}
+
+EPERM=1
+ENOENT=2
+ESRCH=3
+EINTR=4
+EIO=5
+ENXIO=6
+E2BIG=7
+ENOEXEC=8
+EBADF=9
+ECHILD=10
+EAGAIN=11
+ENOMEM=12
+EACCES=13
+EFAULT=14
+ENOTBLK=15
+EBUSY=16
+EEXIST=17
+EXDEV=18
+ENODEV=19
+ENOTDIR=20
+EISDIR=21
+EINVAL=22
+ENFILE=23
+EMFILE=24
+ENOTTY=25
+ETXTBSY=26
+EFBIG=27
+ENOSPC=28
+ESPIPE=29
+EROFS=30
+EMLINK=31
+EPIPE=32
+EDOM=33
+ERANGE=34
+EDEADLOCK=35
+ENAMETOOLONG=36
+ENOLCK=37
+ENOSYS=38
+ENOTEMPTY=39
+ELOOP=40
+ENOMSG=42
+EIDRM=43
+ECHRNG=44
+EL2NSYNC=45
+EL3HLT=46
+EL3RST=47
+ELNRNG=48
+EUNATCH=49
+ENOCSI=50
+EL2HLT=51
+EBADE=52
+EBADR=53
+EXFULL=54
+ENOANO=55
+EBADRQC=56
+EBADSLT=57
+EBFONT=59
+ENOSTR=60
+ENODATA=61
+ETIME=62
+ENOSR=63
+ENONET=64
+ENOPKG=65
+EREMOTE=66
+ENOLINK=67
+EADV=68
+ESRMNT=69
+ECOMM=70
+EPROTO=71
+EMULTIHOP=72
+EDOTDOT=73
+EBADMSG=74
+EOVERFLOW=75
+ENOTUNIQ=76
+EBADFD=77
+EREMCHG=78
+ELIBACC=79
+ELIBBAD=80
+ELIBSCN=81
+ELIBMAX=82
+ELIBEXEC=83
+EILSEQ=84
+ERESTART=85
+ESTRPIPE=86
+EUSERS=87
+ENOTSOCK=88
+EDESTADDRREQ=89
+EMSGSIZE=90
+EPROTOTYPE=91
+ENOPROTOOPT=92
+EPROTONOSUPPORT=93
+ESOCKTNOSUPPORT=94
+ENOTSUP=95
+EPFNOSUPPORT=96
+EAFNOSUPPORT=97
+EADDRINUSE=98
+EADDRNOTAVAIL=99
+ENETDOWN=100
+ENETUNREACH=101
+ENETRESET=102
+ECONNABORTED=103
+ECONNRESET=104
+ENOBUFS=105
+EISCONN=106
+ENOTCONN=107
+ESHUTDOWN=108
+ETOOMANYREFS=109
+ETIMEDOUT=110
+ECONNREFUSED=111
+EHOSTDOWN=112
+EHOSTUNREACH=113
+EALREADY=114
+EINPROGRESS=115
+ESTALE=116
+EUCLEAN=117
+ENOTNAM=118
+ENAVAIL=119
+EISNAM=120
+EREMOTEIO=121
+EDQUOT=122
+ENOMEDIUM=123
+EMEDIUMTYPE=124
+ECANCELED=125
+ENOKEY=126
+EKEYEXPIRED=127
+EKEYREVOKED=128
+EKEYREJECTED=129
+EOWNERDEAD=130
+ENOTRECOVERABLE=131
+ERFKILL=132