Pitch model building

.flake8

@@ -1,3 +1,3 @@
 [flake8]
 exclude = meta/migrations/, docs/
-max-line-length=100
+max-line-length=100

.pre-commit-config.yaml

@@ -0,0 +1,36 @@
+exclude: 'docs|node_modules|migrations|.git|.tox'
+default_stages: [commit]
+fail_fast: true
+
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v2.3.0
+    hooks:
+      - id: check-json
+      - id: end-of-file-fixer
+      - id: trailing-whitespace
+      - id: pretty-format-json
+        args:
+          [
+            "--autofix", # Autofix JSONs
+          ]
+      - id: check-added-large-files
+
+  - repo: local
+    hooks:
+      - id: black
+        name: black
+        entry: black
+        language: python
+        types: [ python ]
+      - id: isort
+        name: isort
+        entry: isort
+        language: python
+        types: [ python ]
+        args: ["--profile", "black"]
+      - id: flake8
+        name: flake8
+        entry: flake8
+        language: python
+        types: [python]

.travis.yml

@@ -15,7 +15,7 @@ install:
   - pip install -r requirements.txt
   - pip install -r tests/test_requirements.txt
 
-# commands to run tests 
+# commands to run tests
 script:
   - flake8
   - pylint */*.py

CHANGELOG.md

@@ -26,5 +26,3 @@ Here is a template for new release sections
 
 ### Removed
 - yet another thing
-
-

CONTRIBUTING.md

@@ -7,10 +7,10 @@
 
 ### Philosophy
 
-Development of a feature for this repository should follow the workflow described 
+Development of a feature for this repository should follow the workflow described
 by [Vincent Driessen](https://nvie.com/posts/a-successful-git-branching-model/).
 
-Here are the minimal procedure you should follow : 
+Here are the minimal procedure you should follow :
 
 #### Step 1: Describe the issue on github
 
@@ -30,9 +30,9 @@ it through first).
     If you are fixing and error you can replace `feature/` by `fix/`.
 2. Try to follow [these conventions](https://chris.beams.io/posts/git-commit) for commit messages:
     - Keep the subject line [short](https://chris.beams.io/posts/git-commit/#limit-50) (i.e. do not commit more than a few changes at the time)
-    - Use [imperative](https://chris.beams.io/posts/git-commit/#imperative) for commit messages 
-    - Do not end the commit message with a [period](https://chris.beams.io/posts/git-commit/#end) 
-        You can use 
+    - Use [imperative](https://chris.beams.io/posts/git-commit/#imperative) for commit messages
+    - Do not end the commit message with a [period](https://chris.beams.io/posts/git-commit/#end)
+        You can use
         ```bash
         git commit --amend
         ```
@@ -48,12 +48,12 @@ it through first).
 
 #### Step 3: Run tests locally
 
-To run tests locally, install the dependencies 
-```bash 
-pip install -r tests/test_requirements.txt 
+To run tests locally, install the dependencies
+```bash
+pip install -r tests/test_requirements.txt
 ```
 
-1. Integration/unit tests 
+1. Integration/unit tests
     ```bash
     pytest tests
     ```
@@ -67,7 +67,7 @@ pip install -r tests/test_requirements.txt
     ```
     You can fix the linting errors either manually or with the packages
     `autopep8` or `black` for example.
-    
+
 #### Step 4: Submit a pull request (PR)
 
 Follow the [steps](https://help.github.com/en/articles/creating-a-pull-request) of the github help to create the PR.
@@ -112,7 +112,7 @@ Your `CHANGELOG.md` file could look like this before the release
 ### Added
 - feature 1
 - feature 2
-### Changed 
+### Changed
 - thing 1
 - thing 2
 ### Removed
@@ -126,7 +126,7 @@ Simply replace `unreleased` by `X.Y.Z` and add the date of release in [ISO forma
 
 ### Added
 -
-### Changed 
+### Changed
 -
 ### Removed
 -
@@ -135,7 +135,7 @@ Simply replace `unreleased` by `X.Y.Z` and add the date of release in [ISO forma
 ### Added
 - feature 1
 - feature 2
-### Changed 
+### Changed
 - thing 1
 - thing 2
 ### Removed
@@ -152,7 +152,7 @@ git checkout release/vX.Y.Z
 ```
 git pull
 ```
-    
+
 ```
 git checkout dev
 ```

steel_industry/.env

@@ -0,0 +1,2 @@
+COLLECTIONS_DIR = ./collections/
+STRUCTURES_DIR= ""