simplify ci dependencies setup

Author: bygu4

.github/workflows/ci_extra.yml

@@ -23,8 +23,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install pytest
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+        pip install -r requirements.txt
 
     - name: Lint with pylint
       run: |

.github/workflows/ci_feature.yml

@@ -27,8 +27,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install pytest
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+        pip install -r requirements.txt
 
     - name: Lint with pylint
       run: |

.github/workflows/ci_master.yml

@@ -26,8 +26,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install pytest
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+        pip install -r requirements.txt
 
     - name: Lint with pylint
       run: |

pyformlang/indexed_grammar/tests/test_indexed_grammar.py

@@ -167,7 +167,7 @@ def test_simple_ig_5(self):
         assert not i_grammar.is_empty()
 
     def test_simple_ig_regular_expression(self):
-        # Test for regular expression functions
+        """ Test for regular expression functions """
 
         l_rules = []
         l_rules.append(ProductionRule("S", "Ci", "end"))
@@ -236,7 +236,7 @@ def test_simple_ig8(self):
         assert not i_grammar.is_empty()
 
     def test_simple_ig9(self):
-        """ {a^n b^n c^n}"""
+        """ {a^n b^n c^n} """
         l_rules = []
         l_rules.append(ProductionRule("S", "T", "g"))
         l_rules.append(ProductionRule("T", "T", "f"))