def validate()

in notebooks/notebook_template_review.py [0:0]
32 lines of code
16 McCabe index (conditional complexity)

    def validate(self, notebook: Notebook) -> bool:
        """
        Parse the installation cells
        """
        ret = True
        
        cell = notebook.get()
        
        if 'Install' not in cell['source'][0]:
            return notebook.report_error(ErrorCode.ERROR_INSTALLATION_NOTFOUND, "Installation section not found")

        if not cell['source'][0].startswith("## Install"):
            ret = notebook.report_error(ErrorCode.ERROR_INSTALLATION_HEADING, "Installation section needs to be H2 heading")
       
            
        cell = notebook.get()
        if cell['cell_type'] != 'code':
            ret = notebook.report_error(ErrorCode.ERROR_INSTALLATION_NOTFOUND, "Installation section not found")
        else:
            if cell['source'][0].startswith('! mkdir'):
                cell = notebook.get()
            if 'requirements.txt' in cell['source'][0]:
                cell = notebook.get()

            text = ''
            for line in cell['source']:
                text += line
                if 'pip ' in line:
                    if 'pip3' not in line:
                        notebook.report_error(ErrorCode.ERROR_INSTALLATION_PIP3, "Installation code section: use pip3")
                    if line.endswith('\\\n'):
                        continue
                    if '-q' not in line and '--quiet' not in line :
                        notebook.report_error(ErrorCode.ERROR_INSTALLATION_QUIET, "Installation code section: use -q with pip3")
                    if 'USER_FLAG' not in line and 'sh(' not in line:
                        notebook.report_error(ErrorCode.ERROR_INSTALLATION_USER_FLAG, "Installation code section: use {USER_FLAG} with pip3")
            if 'required_packages <' in text:
                pass  # R kernel
            elif 'if IS_WORKBENCH_NOTEBOOK:' not in text:
                ret = notebook.report_error(ErrorCode.ERROR_INSTALLATION_CODE_TEMPLATE, "Installation code section out of date (see template)")
        return ret