KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference

How to use _import_names method in autotest

Best Python code snippet using autotest_python

code_imports_analyzer.py

Source:code_imports_analyzer.py

1"""CodeImportsAnalyzer uses the ast module from Python's standard library2to get what modules are imported in given python files, then uses networkx to generate imports graph3"""4import ast5import asyncio6import aiohttp7import pybase648from .graph_analyzer import GraphAnalyzer9def construct_fetch_program_text_api_url(api_url):10    import os11    # to increase api rate limiting12    # https://docs.github.com/en/rest/overview/resources-in-the-rest-api#rate-limiting13    USER = os.environ.get("USER", "")14    PERSONAL_ACCESS_TOKEN = os.environ.get("PERSONAL_ACCESS_TOKEN", "")15    if USER and PERSONAL_ACCESS_TOKEN:16        protocol, api_url_components = api_url.split("://")17        new_api_url_components = f"{USER}:{PERSONAL_ACCESS_TOKEN}@{api_url_components}"18        return f"{protocol}://{new_api_url_components}"19    else:20        return api_url21async def get_program_text(session, python_file):22    # about Retry-After23    # https://docs.github.com/en/rest/guides/best-practices-for-integrators#dealing-with-secondary-rate-limits24    async with session.get(25        construct_fetch_program_text_api_url(python_file["url"]),26        headers={"Accept": "application/vnd.github.v3+json", "Retry-After": "5"},27    ) as response:28        if response.status == 200:29            data = await response.json()30            if data["encoding"] == "base64":31                return data["content"], python_file["path"]32            else:33                print(34                    f"WARNING: {python_file['path']}'s encoding is {data['encoding']}, not base64"35                )36class CodeImportsAnalyzer:37    class _NodeVisitor(ast.NodeVisitor):38        def __init__(self, imports):39            self.imports = imports40        def visit_Import(self, node):41            for alias in node.names:42                self.imports[-1]["imports"].append(43                    {"module": None, "name": alias.name, "level": -1}44                )45            self.generic_visit(node)46        def visit_ImportFrom(self, node):47            for alias in node.names:48                self.imports[-1]["imports"].append(49                    {"module": node.module, "name": alias.name, "level": node.level}50                )51            self.generic_visit(node)52    def __init__(self, python_files):53        self.python_imports = []54        self.graph_analyzer = GraphAnalyzer(is_directed=True)55        self.python_files = python_files56        self._node_visitor = CodeImportsAnalyzer._NodeVisitor(self.python_imports)57    async def parse_python_files(self):58        async with aiohttp.ClientSession() as session:59            tasks = []60            for python_file in self.python_files:61                tasks.append(62                    asyncio.ensure_future(get_program_text(session, python_file))63                )64            results = await asyncio.gather(*tasks)65            if results:66                for base64_program_text, python_file_path in results:67                    if base64_program_text:68                        self.python_imports += [69                            {70                                "file_name": python_file_path.split("/")[-1],71                                "file_path": python_file_path,72                                "imports": [],73                            }74                        ]75                        program = pybase64.b64decode(base64_program_text)76                        tree = ast.parse(program)77                        self._node_visitor.visit(tree)78    def generate_imports_graph(self):79        # TODO: thought on how to improve the graph generation logic80        # generate a dictionary of lists data structure81        # generate a graph based on a dictionary of lists82        for python_import in self.python_imports:83            _nodes = python_import["file_path"].split("/")84            if len(_nodes):85                # generate graph based on file_path86                # node/edge relationship means file/folder structure87                if len(_nodes) > 1:88                    # make last node and second last node as one node89                    # to solve the issue of duplicated file names using only last node90                    if len(_nodes) >= 3:91                        _nodes[-2] = _nodes[-2] + "/" + _nodes[-1]92                        del _nodes[-1]93                    self.graph_analyzer.add_edges_from_nodes(_nodes)94                else:95                    self.graph_analyzer.add_node(_nodes[0])96                # generate graph based on imported modules in each file97                if python_import["file_name"] != "__init__.py":98                    for _import in python_import["imports"]:99                        if _import["module"] is None:100                            _import_names = _import["name"].split(".")101                            _new_nodes = _import_names + [_nodes[-1]]102                            self.graph_analyzer.add_edges_from_nodes(_new_nodes)103                        else:104                            _import_names = _import["module"].split(".") + [105                                _import["name"]106                            ]107                            _new_nodes = _import_names + [_nodes[-1]]108                            self.graph_analyzer.add_edges_from_nodes(_new_nodes)109        return self.graph_analyzer.graph110    def report(self):111        from pprint import pprint...

utils.py

Source:utils.py

...6    def __init__(self):7        self.lines = []8        self.line_numbers = []9    def visit_Import(self, node):10        line = 'import {}'.format(self._import_names(node.names))11        self.line_numbers.append(node.lineno)12        self.lines.append(line)13    def visit_ImportFrom(self, node):14        line = 'from {}{} import {}'.format(15            node.level * '.',16            node.module or '',17            self._import_names(node.names))18        self.line_numbers.append(node.lineno)19        self.lines.append(line)20    def _import_names(self, names):21        return ', '.join(map(attrgetter('name'), names))22def extract_imports(source, verbose=True):23    tree = ast.parse(source)24    import_parser = ImportParser()25    import_parser.visit(tree)26    import_lines = []27    for line in import_parser.lines:28        if 'print_function' in line:29            import_lines.append(line + '\n')30        # skip imports for pycharm and eclipse31        elif '_pydev_' in line or 'java.lang' in line:32            continue33        else:34            import_lines.append('try:\n    {}\nexcept:\n    pass\n'.format(line))...

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.