Drop support for Python 3.7 (#356)

* Drop support for Python 3.7

* pr comments

* fixing tox

.github/workflows/docs.yml

@@ -10,10 +10,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
-    - name: Set up Python 3.8
+    - name: Set up Python 3.9
       uses: actions/setup-python@v2
       with:
-        python-version: 3.8
+        python-version: 3.9
     - name: Build
       run: |
         sudo apt-get install pandoc

.github/workflows/end_to_end.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11']
         os: [ubuntu-latest, macos-latest, windows-latest]
     steps:
     - uses: actions/checkout@v1

.github/workflows/lint.yml

@@ -10,10 +10,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v1
-    - name: Set up Python 3.8
+    - name: Set up Python 3.9
       uses: actions/setup-python@v2
       with:
-        python-version: 3.8
+        python-version: 3.9
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip

.github/workflows/minimum.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11']
         os: [ubuntu-latest, macos-latest, windows-latest]
     steps:
     - uses: actions/checkout@v1

.github/workflows/numerical.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11']
         os: [ubuntu-latest, macos-latest, windows-latest]
     steps:
     - uses: actions/checkout@v1

.github/workflows/readme.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11']
         os: [ubuntu-latest, macos-latest]
     steps:
     - uses: actions/checkout@v1

.github/workflows/tutorials.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11']
     steps:
     - uses: actions/checkout@v1
     - name: Set up Python ${{ matrix.python-version }}

.github/workflows/unit.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11']
         os: [ubuntu-latest, macos-latest, windows-latest]
     steps:
     - uses: actions/checkout@v1

INSTALL.md

@@ -3,7 +3,7 @@
 ## Requirements
 
 **Copulas** has been developed and tested on
-[Python 3.7, 3.8, 3.9, 3.10 and 3.11](https://www.python.org/downloads/)
+[Python 3.8, 3.9, 3.10 and 3.11](https://www.python.org/downloads/)
 
 Also, although it is not strictly required, the usage of a [virtualenv](
 https://virtualenv.pypa.io/en/latest/) is highly recommended in order to avoid

copulas/multivariate/vine.py

@@ -71,8 +71,8 @@ class VineCopula(Multivariate):
     def __init__(self, vine_type, random_state=None):
         if sys.version_info > (3, 8):
             warnings.warn(
-                'Vines have not been fully tested on Python 3.8 and might '
-                'produce wrong results. Please use Python 3.5, 3.6 or 3.7'
+                'Vines have not been fully tested on Python >= 3.8 and might '
+                'produce wrong results.'
             )
 
         self.random_state = validate_random_state(random_state)

setup.py

@@ -12,7 +12,7 @@
     history = history_file.read()
 
 install_requires = [
-    "matplotlib>=3.4.0,<4;python_version>='3.7' and python_version<'3.10'",
+    "matplotlib>=3.4.0,<4;python_version<'3.10'",
     "matplotlib>=3.6.0,<4;python_version>='3.10'",
     "numpy>=1.20.0,<2;python_version<'3.10'",
     "numpy>=1.23.3,<2;python_version>='3.10'",
@@ -111,7 +111,6 @@
         'License :: Free for non-commercial use',
         'Natural Language :: English',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
@@ -132,7 +131,7 @@
     keywords='copulas',
     name='copulas',
     packages=find_packages(include=['copulas', 'copulas.*']),
-    python_requires='>=3.7,<3.12',
+    python_requires='>=3.8,<3.12',
     setup_requires=setup_requires,
     test_suite='tests',
     tests_require=tests_require,

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py38-lint, py3{7,8,9,10,11}-{readme,unit,end_to_end,numerical,minimum,tutorials}
+envlist = py39-lint, py3{8,9,10,11}-{readme,unit,end_to_end,numerical,minimum,tutorials}
 
 [testenv]
 skipsdist = false