#126 pip installation fails when offline

$ ./build.sh 
Updating SQLiteCpp
Detected OS: Arch Linux
Packages: Checking...
Packages: Found.
Additional Packages: Checking...
Additional Packages: Found.
Collecting coverage==4.5.1 (from -r resources/requirements.txt (line 1))
  Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x7fcb1a8ec160>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution',)': /simple/coverage/
  Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x7fcb1a8ec4a8>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution',)': /simple/coverage/
  Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x7fcb1a8ecba8>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution',)': /simple/coverage/
  Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x7fcb1a8ec0f0>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution',)': /simple/coverage/
  Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x7fcb1a8ec128>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution',)': /simple/coverage/
  Could not find a version that satisfies the requirement coverage==4.5.1 (from -r resources/requirements.txt (line 1)) (from versions: )
No matching distribution found for coverage==4.5.1 (from -r resources/requirements.txt (line 1))
-- The C compiler identification is GNU 8.1.0
-- The CXX compiler identification is GNU 8.1.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
[...]

$ ./id2t -i resources/201804041400.pcap -a SMBScan-T                   
Traceback (most recent call last):
  File "/home/pepper-jk/code/ID2T-toolkit/code/CLI.py", line 5, in <module>
    from Core.Controller import Controller
  File "/home/pepper-jk/code/ID2T-toolkit/code/Core/Controller.py", line 8, in <module>
    import pyparsing as pp
ModuleNotFoundError: No module named 'pyparsing'

The installation of pip dependencies fails while offline. This is due to pip requesting hashes for the packages in cache before installing, this requires an internet connection. $ ./build.sh Updating SQLiteCpp Detected OS: Arch Linux Packages: Checking... Packages: Found. Additional Packages: Checking... Additional Packages: Found. Collecting coverage==4.5.1 (from -r resources/requirements.txt (line 1)) Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x7fcb1a8ec160>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution',)': /simple/coverage/ Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x7fcb1a8ec4a8>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution',)': /simple/coverage/ Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x7fcb1a8ecba8>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution',)': /simple/coverage/ Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x7fcb1a8ec0f0>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution',)': /simple/coverage/ Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x7fcb1a8ec128>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution',)': /simple/coverage/ Could not find a version that satisfies the requirement coverage==4.5.1 (from -r resources/requirements.txt (line 1)) (from versions: ) No matching distribution found for coverage==4.5.1 (from -r resources/requirements.txt (line 1)) -- The C compiler identification is GNU 8.1.0 -- The CXX compiler identification is GNU 8.1.0 -- Check for working C compiler: /usr/bin/cc -- Check for working C compiler: /usr/bin/cc -- works [...] This results in the python-venv not being setup probably and ID2T to crash on start, because of the missing dependencies: $ ./id2t -i resources/201804041400.pcap -a SMBScan-T Traceback (most recent call last): File "/home/pepper-jk/code/ID2T-toolkit/code/CLI.py", line 5, in <module> from Core.Controller import Controller File "/home/pepper-jk/code/ID2T-toolkit/code/Core/Controller.py", line 8, in <module> import pyparsing as pp ModuleNotFoundError: No module named 'pyparsing'

Fixed in pull request #133.