>>> host-python-networkx 2.4 Downloading
--2020-07-21 17:26:48--  https://pypi.python.org/packages/bf/63/7b579dd3b1c49ce6b7fd8f6f864038f255201410905dd183cf7f4a3845cf/networkx-2.4.tar.gz
Loaded CA certificate '/etc/ssl/certs/ca-certificates.crt'
Resolving pypi.python.org (pypi.python.org)... 2a04:4e42:6::223, 151.101.24.223
Connecting to pypi.python.org (pypi.python.org)|2a04:4e42:6::223|:443... connected.
HTTP request sent, awaiting response... 301 Redirect to Primary Domain
Location: https://pypi.org/packages/bf/63/7b579dd3b1c49ce6b7fd8f6f864038f255201410905dd183cf7f4a3845cf/networkx-2.4.tar.gz [following]
--2020-07-21 17:26:48--  https://pypi.org/packages/bf/63/7b579dd3b1c49ce6b7fd8f6f864038f255201410905dd183cf7f4a3845cf/networkx-2.4.tar.gz
Resolving pypi.org (pypi.org)... 2a04:4e42::223, 2a04:4e42:600::223, 2a04:4e42:400::223, ...
Connecting to pypi.org (pypi.org)|2a04:4e42::223|:443... connected.
HTTP request sent, awaiting response... 301 Moved Permanently
Location: https://files.pythonhosted.org/packages/bf/63/7b579dd3b1c49ce6b7fd8f6f864038f255201410905dd183cf7f4a3845cf/networkx-2.4.tar.gz [following]
--2020-07-21 17:26:49--  https://files.pythonhosted.org/packages/bf/63/7b579dd3b1c49ce6b7fd8f6f864038f255201410905dd183cf7f4a3845cf/networkx-2.4.tar.gz
Resolving files.pythonhosted.org (files.pythonhosted.org)... 2a04:4e42:6::319, 151.101.25.63
Connecting to files.pythonhosted.org (files.pythonhosted.org)|2a04:4e42:6::319|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1462338 (1.4M) [binary/octet-stream]
Saving to: '/data/buildroot/buildroot-test/instance-0/output/build/.networkx-2.4.tar.gz.7g78lt/output'

     0K .......... .......... .......... .......... ..........  3%  869K 2s
    50K .......... .......... .......... .......... ..........  7% 1.96M 1s
   100K .......... .......... .......... .......... .......... 10% 4.85M 1s
   150K .......... .......... .......... .......... .......... 14% 2.73M 1s
   200K .......... .......... .......... .......... .......... 17% 2.99M 1s
   250K .......... .......... .......... .......... .......... 21% 3.74M 1s
   300K .......... .......... .......... .......... .......... 24% 4.45M 0s
   350K .......... .......... .......... .......... .......... 28% 3.71M 0s
   400K .......... .......... .......... .......... .......... 31% 4.84M 0s
   450K .......... .......... .......... .......... .......... 35% 3.78M 0s
   500K .......... .......... .......... .......... .......... 38% 4.41M 0s
   550K .......... .......... .......... .......... .......... 42% 4.56M 0s
   600K .......... .......... .......... .......... .......... 45% 2.79M 0s
   650K .......... .......... .......... .......... .......... 49% 5.08M 0s
   700K .......... .......... .......... .......... .......... 52% 5.34M 0s
   750K .......... .......... .......... .......... .......... 56% 3.60M 0s
   800K .......... .......... .......... .......... .......... 59% 5.48M 0s
   850K .......... .......... .......... .......... .......... 63% 3.73M 0s
   900K .......... .......... .......... .......... .......... 66% 5.62M 0s
   950K .......... .......... .......... .......... .......... 70% 5.36M 0s
  1000K .......... .......... .......... .......... .......... 73% 4.79M 0s
  1050K .......... .......... .......... .......... .......... 77% 5.02M 0s
  1100K .......... .......... .......... .......... .......... 80% 5.16M 0s
  1150K .......... .......... .......... .......... .......... 84% 5.59M 0s
  1200K .......... .......... .......... .......... .......... 87% 4.71M 0s
  1250K .......... .......... .......... .......... .......... 91% 5.26M 0s
  1300K .......... .......... .......... .......... .......... 94% 6.79M 0s
  1350K .......... .......... .......... .......... .......... 98% 5.06M 0s
  1400K .......... .......... ........                        100% 7.67M=0.4s

2020-07-21 17:26:49 (3.70 MB/s) - '/data/buildroot/buildroot-test/instance-0/output/build/.networkx-2.4.tar.gz.7g78lt/output' saved [1462338/1462338]

networkx-2.4.tar.gz: OK (sha256: f8f4ff0b6f96e4f9b16af6b84622597b5334bf9cae8cf9b2e42e7985d5c95c64)
>>> host-python-networkx 2.4 Extracting
gzip -d -c /data/buildroot/buildroot-test/instance-0/dl/python-networkx/networkx-2.4.tar.gz | /data/buildroot/buildroot-test/instance-0/output/host/bin/tar --strip-components=1 -C /data/buildroot/buildroot-test/instance-0/output/build/host-python-networkx-2.4   -xf -
>>> host-python-networkx 2.4 Patching
>>> host-python-networkx 2.4 Configuring
>>> host-python-networkx 2.4 Building
(cd /data/buildroot/buildroot-test/instance-0/output/build/host-python-networkx-2.4//; PATH="/data/buildroot/buildroot-test/instance-0/output/host/bin:/data/buildroot/buildroot-test/instance-0/output/host/sbin:/data/buildroot/buildroot-test/venv/bin:/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl" PYTHONNOUSERSITE=1 PATH="/data/buildroot/buildroot-test/instance-0/output/host/bin:/data/buildroot/buildroot-test/instance-0/output/host/sbin:/data/buildroot/buildroot-test/venv/bin:/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl" PKG_CONFIG="/data/buildroot/buildroot-test/instance-0/output/host/bin/pkg-config" PKG_CONFIG_SYSROOT_DIR="/" PKG_CONFIG_ALLOW_SYSTEM_CFLAGS=1 PKG_CONFIG_ALLOW_SYSTEM_LIBS=1 PKG_CONFIG_LIBDIR="/data/buildroot/buildroot-test/instance-0/output/host/lib/pkgconfig:/data/buildroot/buildroot-test/instance-0/output/host/share/pkgconfig" AR="/usr/bin/ar" AS="/usr/bin/as" LD="/usr/bin/ld" NM="/usr/bin/nm" CC="/usr/bin/gcc" GCC="/usr/bin/gcc" CXX="/usr/bin/g++" CPP="/usr/bin/cpp" OBJCOPY="/usr/bin/objcopy" RANLIB="/usr/bin/ranlib" CPPFLAGS="-I/data/buildroot/buildroot-test/instance-0/output/host/include" CFLAGS="-O2 -I/data/buildroot/buildroot-test/instance-0/output/host/include" CXXFLAGS="-O2 -I/data/buildroot/buildroot-test/instance-0/output/host/include" LDFLAGS="-L/data/buildroot/buildroot-test/instance-0/output/host/lib -Wl,-rpath,/data/buildroot/buildroot-test/instance-0/output/host/lib" INTLTOOL_PERL=/usr/bin/perl  /data/buildroot/buildroot-test/instance-0/output/host/bin/python setup.py build  )
NetworkX 2.3+ requires Python 3.5 or later (2.7 detected).
             
For Python 2.7, please install version 2.2 using:

$ pip install 'networkx==2.2'

make: *** [package/pkg-generic.mk:269: /data/buildroot/buildroot-test/instance-0/output/build/host-python-networkx-2.4/.stamp_built] Error 1
make: Leaving directory '/data/buildroot/buildroot-test/instance-0/buildroot'