Try to fix CI

Author: konstin

.gitignore

@@ -2,6 +2,7 @@
 *.pyo
 *.so
 .eggs
+.tox
 dist
 build
 target

.travis.yml

@@ -17,8 +17,6 @@ matrix:
 install:
   - curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain nightly
   - source $HOME/.cargo/env
-  - rustc -V
-  - cargo -V
   - export PYTHON_LIB=$(python -c "import sysconfig; print(sysconfig.get_config_var('LIBDIR'))")
   - export LIBRARY_PATH="$LIBRARY_PATH:$PYTHON_LIB"
   - export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:$PYTHON_LIB:$HOME/rust/lib"

example_tomlgen/hello/english/lib.rs

@@ -1,12 +1,10 @@
-#![feature(use_extern_macros)]
-
 extern crate pyo3;
 
 use pyo3::prelude::*;
 
 /// Module documentation string
 #[pymodinit]
-fn english(py: Python, m: &PyModule) -> PyResult<()> {
+fn english(_py: Python, m: &PyModule) -> PyResult<()> {
 
     #[pyfn(m, "hello")]
     fn hello(_py: Python) -> PyResult<()> {

example_tomlgen/hello/french/lib.rs

@@ -1,12 +1,10 @@
-#![feature(use_extern_macros)]
-
 extern crate pyo3;
 
 use pyo3::prelude::*;
 
 /// Module documentation string
 #[pymodinit]
-fn french(py: Python, m: &PyModule) -> PyResult<()> {
+fn french(_py: Python, m: &PyModule) -> PyResult<()> {
 
     #[pyfn(m, "hello")]
     fn hello(_py: Python) -> PyResult<()> {

example_tomlgen/setup.cfg

@@ -10,7 +10,7 @@ zip_safe = false
 create_workspace = true
 
 [tomlgen_rust.dependencies]
-pyo3 = { version = "*", features = ["extension-module"] }
+pyo3 = { version = "0.4", features = ["extension-module"] }
 
 [tomlgen_rust.dependencies.hello-english]
 english-lint = "*"