Merge pull request readthedocs#66 from rtfd/humitos/pyenv/missing-dep

Add missing pyenv build dependency

Author: humitos

.travis.yml

@@ -1,8 +1,12 @@
 language: python
 python:
   - "3.6"
+env:
+  global:
+    - PIPENV_VENV_IN_PROJECT=1
+    - PIPENV_IGNORE_VIRTUALENVS=1
 before_install:
   - pip install pipenv
 install:
-  - pipenv install --system
-script: pytest
+  - pipenv install
+script: pipenv run pytest

Dockerfile

@@ -32,7 +32,8 @@ RUN apt-get -y install \
 
 # pyenv extra requirements
 RUN apt-get install -y \
-    make libssl-dev wget llvm libncurses5-dev libncursesw5-dev xz-utils
+    make libssl-dev wget llvm libncurses5-dev libncursesw5-dev xz-utils \
+    tk-dev
 
 # LaTeX -- split to reduce image layer size
 RUN apt-get -y install texlive-fonts-extra