Windows users running Python2.7 AMD64 following the instructions to extract the SDK and install will see:
pcap.obj : warning LNK4197: export 'initpcap' specified multiple times; using first specification
Creating library build\temp.win-amd64-2.7\Release\pcap.lib and object build\temp.win-amd64-2.7\Release\pcap.exp
pcap.obj : error LNK2019: unresolved external symbol __imp_pcap_freecode referenced in function __pyx_pf_4pcap_3bpf_4__dealloc__
pcap.obj : error LNK2019: unresolved external symbol __imp_pcap_close referenced in function __pyx_pf_4pcap_4pcap_32__dealloc__
pcap_ex.obj : error LNK2001: unresolved external symbol __imp_pcap_close
pcap.obj : error LNK2019: unresolved external symbol __imp_bpf_filter referenced in function __pyx_pf_4pcap_3bpf_2filter
pcap.obj : error LNK2019: unresolved external symbol __imp_pcap_snapshot referenced in function __pyx_pf_4pcap_4pcap_7snaplen___get__
pcap.obj : error LNK2019: unresolved external symbol __imp_pcap_datalink referenced in function __pyx_pf_4pcap_4pcap_12datalink
pcap.obj : error LNK2019: unresolved external symbol __imp_pcap_geterr referenced in function __pyx_pf_4pcap_4pcap_24geterr
pcap.obj : error LNK2019: unresolved external symbol __imp_pcap_stats referenced in function __pyx_pf_4pcap_4pcap_26stats
pcap.obj : error LNK2019: unresolved external symbol __imp_pcap_freealldevs referenced in function __pyx_pf_4pcap_4findalldevs
pcap_ex.obj : error LNK2001: unresolved external symbol __imp_pcap_freealldevs
pcap.obj : error LNK2019: unresolved external symbol __imp_pcap_findalldevs referenced in function __pyx_pf_4pcap_4findalldevs
pcap_ex.obj : error LNK2001: unresolved external symbol __imp_pcap_findalldevs
pcap.obj : error LNK2019: unresolved external symbol __imp_pcap_lookupnet referenced in function __pyx_pf_4pcap_6lookupnet
pcap.obj : error LNK2019: unresolved external symbol __imp_pcap_open_live referenced in function __pyx_pf_4pcap_4pcap___init__
pcap.obj : error LNK2019: unresolved external symbol __imp_pcap_open_offline referenced in function __pyx_pf_4pcap_4pcap___init__
pcap_ex.obj : error LNK2001: unresolved external symbol __imp_pcap_open_offline
pcap.obj : error LNK2019: unresolved external symbol __imp_pcap_setfilter referenced in function __pyx_pf_4pcap_4pcap_4setfilter
pcap.obj : error LNK2019: unresolved external symbol __imp_pcap_compile referenced in function __pyx_pf_4pcap_4pcap_4setfilter
pcap_ex.obj : error LNK2001: unresolved external symbol __imp_pcap_compile
pcap.obj : error LNK2019: unresolved external symbol __imp_pcap_dispatch referenced in function __pyx_pf_4pcap_4pcap_18dispatch
pcap.obj : error LNK2019: unresolved external symbol __imp_pcap_sendpacket referenced in function __pyx_pf_4pcap_4pcap_22sendpacket
pcap_ex.obj : error LNK2019: unresolved external symbol __imp_pcap_setmintocopy referenced in function pcap_ex_immediate
pcap_ex.obj : error LNK2019: unresolved external symbol __imp_pcap_getevent referenced in function pcap_ex_fileno
pcap_ex.obj : error LNK2019: unresolved external symbol __imp_pcap_next_ex referenced in function pcap_ex_next
build\lib.win-amd64-2.7\pcap.pyd : fatal error LNK1120: 19 unresolved externals
because it tries to link the (default) x86 libraries.
A working workaround is to replace the existing .lib files in the pypcap-master\wpdpack\Lib folder with the .lib files from pypcap-master\wpdpack\Lib\x64. Compilation will then succeed.
Windows users running Python2.7 AMD64 following the instructions to extract the SDK and install will see:
because it tries to link the (default) x86 libraries.
A working workaround is to replace the existing .lib files in the
pypcap-master\wpdpack\Libfolder with the .lib files frompypcap-master\wpdpack\Lib\x64. Compilation will then succeed.