can't install to a fresh virtual environment

[tsundokum]

`(.vipavlov) marat@dgx1:~/DeepPavlov$ pip3 install -r requirements.txt
Collecting Cython (from -r requirements.txt (line 1))
Downloading Cython-0.27.3-cp35-cp35m-manylinux1_x86_64.whl (3.0MB)
100% |████████████████████████████████| 3.0MB 538kB/s
Collecting lxml==4.1.1 (from -r requirements.txt (line 2))
Downloading lxml-4.1.1-cp35-cp35m-manylinux1_x86_64.whl (5.5MB)
100% |████████████████████████████████| 5.5MB 299kB/s
Collecting tqdm==4.19.4 (from -r requirements.txt (line 3))
Downloading tqdm-4.19.4-py2.py3-none-any.whl (50kB)
100% |████████████████████████████████| 51kB 11.7MB/s
Collecting requests==2.18.4 (from -r requirements.txt (line 4))
Using cached requests-2.18.4-py2.py3-none-any.whl
Collecting gensim==2.3.0 (from -r requirements.txt (line 5))
Downloading gensim-2.3.0.tar.gz (17.2MB)
100% |████████████████████████████████| 17.2MB 90kB/s
Collecting tensorflow==1.4.0 (from -r requirements.txt (line 6))
Downloading tensorflow-1.4.0-cp35-cp35m-manylinux1_x86_64.whl (40.7MB)
100% |████████████████████████████████| 40.7MB 38kB/s
Collecting overrides==1.9 (from -r requirements.txt (line 7))
Downloading overrides-1.9.tar.gz
Collecting kenlm==0.0.0 (from -r requirements.txt (line 9))
Downloading kenlm-0.tar.gz (1.4MB)
100% |████████████████████████████████| 1.5MB 1.0MB/s
Collecting six==1.11.0 (from -r requirements.txt (line 10))
Using cached six-1.11.0-py2.py3-none-any.whl
Collecting h5py==2.7.1 (from -r requirements.txt (line 11))
Downloading h5py-2.7.1-cp35-cp35m-manylinux1_x86_64.whl (5.3MB)
100% |████████████████████████████████| 5.3MB 336kB/s
Collecting keras==2.1.2 (from -r requirements.txt (line 12))
Downloading Keras-2.1.2-py2.py3-none-any.whl (304kB)
100% |████████████████████████████████| 307kB 4.7MB/s
Collecting pandas==0.21.1 (from -r requirements.txt (line 13))
Downloading pandas-0.21.1-cp35-cp35m-manylinux1_x86_64.whl (25.7MB)
100% |████████████████████████████████| 25.7MB 57kB/s
Collecting fuzzywuzzy==0.16.0 (from -r requirements.txt (line 14))
Downloading fuzzywuzzy-0.16.0-py2.py3-none-any.whl
Collecting fasttext==0.8.3 (from -r requirements.txt (line 15))
Downloading fasttext-0.8.3.tar.gz (73kB)
100% |████████████████████████████████| 81kB 9.8MB/s
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "", line 1, in
File "/tmp/pip-build-ym9i0nin/fasttext/setup.py", line 3, in
from Cython.Build import cythonize
ImportError: No module named 'Cython'

----------------------------------------

Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-ym9i0nin/fasttext/
`

[tsundokum]

problem has gone after i manually installed Cython and NumPy

[yoptar]

Read the readme, please. Specifically, the installation part:

4. Install the requirements:
   python setup.py install