Add ruff and associated fixes

Signed-off-by: cyy <[email protected]>

Author: cyyever

docs/conf.py

@@ -12,7 +12,7 @@
 #
 import os
 import sys
-import sphinx_rtd_theme
+
 sys.path.insert(0, os.path.abspath('..'))
 
 
@@ -75,4 +75,4 @@
 # -- Options for todo extension ----------------------------------------------
 
 # If true, `todo` and `todoList` produce output, else they produce nothing.
-todo_include_todos = False
+todo_include_todos = False

pyproject.toml

@@ -1,3 +1,21 @@
 [build-system]
 requires = ["setuptools", "wheel"]
 build-backend = "setuptools.build_meta"
+
+[tool.ruff]
+target-version = "py39"
+[tool.ruff.lint]
+select = [
+    # pycodestyle
+    "E",
+    # Pyflakes
+    "F",
+    # pyupgrade
+    "UP",
+    # flake8-bugbear
+    "B",
+    # isort
+    "I",
+    "RUF013"
+]
+ignore = ["E501", "F401"]

scholarly/__init__.py

@@ -1,4 +1,5 @@
+from ._proxy_generator import DOSException, MaxTriesExceededException, ProxyGenerator
 from ._scholarly import _Scholarly
 from .data_types import Author, Publication
-from ._proxy_generator import ProxyGenerator, DOSException, MaxTriesExceededException
+
 scholarly = _Scholarly()