Support JSONPath

docs/conf.py

@@ -21,24 +21,24 @@
 # Add any Sphinx extension module names here, as strings. They can be
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
 extensions = [
-    'notfound.extension',
-    'sphinx.ext.autodoc',
-    'sphinx.ext.intersphinx',
-    'sphinx.ext.viewcode',
+    "notfound.extension",
+    "sphinx.ext.autodoc",
+    "sphinx.ext.intersphinx",
+    "sphinx.ext.viewcode",
 ]
 
 # Add any paths that contain templates here, relative to this directory.
-templates_path = ['_templates']
+templates_path = ["_templates"]
 
 # The suffix of source filenames.
-source_suffix = '.rst'
+source_suffix = ".rst"
 
 # The master toctree document.
-master_doc = 'index'
+master_doc = "index"
 
 # General information about the project.
-project = 'Parsel'
-copyright = '2015, Scrapy Project'
+project = "Parsel"
+copyright = "2015, Scrapy Project"
 
 # The version info for the project you're documenting, acts as replacement
 # for |version| and |release|, also used in various other places throughout
@@ -51,28 +51,28 @@
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
-exclude_patterns = ['_build']
+exclude_patterns = ["_build"]
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
+pygments_style = "sphinx"
 
-suppress_warnings = ['epub.unknown_project_files']
+suppress_warnings = ["epub.unknown_project_files"]
 
 
 # -- Options for HTML output -------------------------------------------
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
-html_theme = 'sphinx_rtd_theme'
+html_theme = "sphinx_rtd_theme"
 
 # Add any paths that contain custom static files (such as style sheets)
 # here, relative to this directory. They are copied after the builtin
 # static files, so a file named "default.css" will overwrite the builtin
 # "default.css".
-html_static_path = ['_static']
+html_static_path = ["_static"]
 
 # Output file base name for HTML help builder.
-htmlhelp_basename = 'parseldoc'
+htmlhelp_basename = "parseldoc"
 
 
 # -- Options for LaTeX output ------------------------------------------
@@ -83,9 +83,13 @@
 # (source start file, target name, title, author, documentclass
 # [howto/manual]).
 latex_documents = [
-    ('index', 'parsel.tex',
-     'Parsel Documentation',
-     'Scrapy Project', 'manual'),
+    (
+        "index",
+        "parsel.tex",
+        "Parsel Documentation",
+        "Scrapy Project",
+        "manual",
+    ),
 ]
 
 
@@ -94,9 +98,7 @@
 # One entry per manual page. List of tuples
 # (source start file, name, description, authors, manual section).
 man_pages = [
-    ('index', 'parsel',
-     'Parsel Documentation',
-     ['Scrapy Project'], 1)
+    ("index", "parsel", "Parsel Documentation", ["Scrapy Project"], 1)
 ]
 
 
@@ -106,30 +108,33 @@
 # (source start file, target name, title, author,
 #  dir menu entry, description, category)
 texinfo_documents = [
-    ('index', 'parsel',
-     'Parsel Documentation',
-     'Scrapy Project',
-     'parsel',
-     'One line description of project.',
-     'Miscellaneous'),
+    (
+        "index",
+        "parsel",
+        "Parsel Documentation",
+        "Scrapy Project",
+        "parsel",
+        "One line description of project.",
+        "Miscellaneous",
+    ),
 ]
 
 
 # -- Options for the InterSphinx extension ------------------------------------
 
 intersphinx_mapping = {
-    'cssselect': ('https://cssselect.readthedocs.io/en/latest', None),
-    'python': ('https://docs.python.org/3', None),
-    'requests': ('https://requests.kennethreitz.org/en/latest', None),
+    "cssselect": ("https://cssselect.readthedocs.io/en/latest", None),
+    "python": ("https://docs.python.org/3", None),
+    "requests": ("https://requests.kennethreitz.org/en/latest", None),
 }
 
 
 # --- Nitpicking options ------------------------------------------------------
 
 # nitpicky = True  # https://github.com/scrapy/cssselect/pull/110
 nitpick_ignore = [
-    ('py:class', 'cssselect.xpath.GenericTranslator'),
-    ('py:class', 'cssselect.xpath.HTMLTranslator'),
-    ('py:class', 'cssselect.xpath.XPathExpr'),
-    ('py:class', 'lxml.etree.XMLParser'),
+    ("py:class", "cssselect.xpath.GenericTranslator"),
+    ("py:class", "cssselect.xpath.HTMLTranslator"),
+    ("py:class", "cssselect.xpath.XPathExpr"),
+    ("py:class", "lxml.etree.XMLParser"),
 ]

docs/conftest.py

@@ -2,32 +2,35 @@
 from doctest import ELLIPSIS, NORMALIZE_WHITESPACE
 
 from sybil import Sybil
+
 try:
     from sybil.parsers.codeblock import PythonCodeBlockParser
 except ImportError:
-    from sybil.parsers.codeblock import CodeBlockParser as PythonCodeBlockParser
+    from sybil.parsers.codeblock import (
+        CodeBlockParser as PythonCodeBlockParser,
+    )
 from sybil.parsers.doctest import DocTestParser
 from sybil.parsers.skip import skip
 
 from parsel import Selector
 
 
 def load_selector(filename, **kwargs):
-    input_path = os.path.join(os.path.dirname(__file__), '_static', filename)
+    input_path = os.path.join(os.path.dirname(__file__), "_static", filename)
     with open(input_path, encoding="utf-8") as input_file:
         return Selector(text=input_file.read(), **kwargs)
 
 
 def setup(namespace):
-    namespace['load_selector'] = load_selector
+    namespace["load_selector"] = load_selector
 
 
 pytest_collect_file = Sybil(
     parsers=[
         DocTestParser(optionflags=ELLIPSIS | NORMALIZE_WHITESPACE),
-        PythonCodeBlockParser(future_imports=['print_function']),
+        PythonCodeBlockParser(future_imports=["print_function"]),
         skip,
     ],
-    pattern='*.rst',
+    pattern="*.rst",
     setup=setup,
 ).pytest()

parsel/csstranslator.py

@@ -14,7 +14,9 @@ class XPathExpr(OriginalXPathExpr):
 
     @classmethod
     def from_xpath(cls, xpath, textnode=False, attribute=None):
-        x = cls(path=xpath.path, element=xpath.element, condition=xpath.condition)
+        x = cls(
+            path=xpath.path, element=xpath.element, condition=xpath.condition
+        )
         x.textnode = textnode
         x.attribute = attribute
         return x
@@ -81,7 +83,9 @@ def xpath_attr_functional_pseudo_element(self, xpath, function):
             raise ExpressionError(
                 f"Expected a single string or ident for ::attr(), got {function.arguments!r}"
             )
-        return XPathExpr.from_xpath(xpath, attribute=function.arguments[0].value)
+        return XPathExpr.from_xpath(
+            xpath, attribute=function.arguments[0].value
+        )
 
     def xpath_text_simple_pseudo_element(self, xpath):
         """Support selecting text nodes using ::text pseudo-element"""