exception

问题 When attempting to catch/handle an exception thrown from PDFParser, I cannot catch it. I use a simple try catch statement, outlined below. try{ $pdf = $parser->parseFile($filepath); $text = $pdf->getText(); } catch( \Exception $e){ $text = $paper->abstract; } The exception is thrown as follows. if (empty($data)) { throw new \Exception('Object list not found. Possible secured file.'); } The output is here. lumen.ERROR: Exception: Object list not found. Possible secured file. in /Users

问题 When attempting to catch/handle an exception thrown from PDFParser, I cannot catch it. I use a simple try catch statement, outlined below. try{ $pdf = $parser->parseFile($filepath); $text = $pdf->getText(); } catch( \Exception $e){ $text = $paper->abstract; } The exception is thrown as follows. if (empty($data)) { throw new \Exception('Object list not found. Possible secured file.'); } The output is here. lumen.ERROR: Exception: Object list not found. Possible secured file. in /Users

问题 When attempting to catch/handle an exception thrown from PDFParser, I cannot catch it. I use a simple try catch statement, outlined below. try{ $pdf = $parser->parseFile($filepath); $text = $pdf->getText(); } catch( \Exception $e){ $text = $paper->abstract; } The exception is thrown as follows. if (empty($data)) { throw new \Exception('Object list not found. Possible secured file.'); } The output is here. lumen.ERROR: Exception: Object list not found. Possible secured file. in /Users

问题 This question already has answers here : What are type hints in Python 3.5? (5 answers) Closed 4 years ago . In other languages anything like the example throws a type error. Why not in Python? >>> def foo(a:int) -> str: return a+1 >>> foo(5) 6 回答1: Type hinting in Python is an optional addition to aid static code analysis and editors. From the PEP 484 -- Type Hints specification: Note that this PEP still explicitly does NOT prevent other uses of annotations, nor does it require (or forbid)

问题 This question already has answers here : What are type hints in Python 3.5? (5 answers) Closed 4 years ago . In other languages anything like the example throws a type error. Why not in Python? >>> def foo(a:int) -> str: return a+1 >>> foo(5) 6 回答1: Type hinting in Python is an optional addition to aid static code analysis and editors. From the PEP 484 -- Type Hints specification: Note that this PEP still explicitly does NOT prevent other uses of annotations, nor does it require (or forbid)

问题 I am getting EOFException when I call a REST API. I know it says that response is null. But it should not. I use same API in an iOS application without any problem. Here is my code : try { url = new URL(baseUrl); } // Thrown when URL could not be parsed catch (MalformedURLException me) { Log.e(TAG, "URL could not be parsed. URL : " + baseUrl, me); } try { // System.setProperty("http.keepAlive", "false"); // Set connection properties urlConnection = (HttpURLConnection) url.openConnection();

问题 I have an exception class defined #####UNIQUE CONSTRAINT EXCEPTION#########################################################3 class UniqueConstraintException (Exception): def __init__(self, value): self.value = value def __str__(self): return repr('Failed unique property. Property name: ' + self.value) The file name is: "UniqueConstraintException.py" and package name: "exception" I'm importing and using it in this way: from exception import UniqueConstraintException raise

问题 I have an exception class defined #####UNIQUE CONSTRAINT EXCEPTION#########################################################3 class UniqueConstraintException (Exception): def __init__(self, value): self.value = value def __str__(self): return repr('Failed unique property. Property name: ' + self.value) The file name is: "UniqueConstraintException.py" and package name: "exception" I'm importing and using it in this way: from exception import UniqueConstraintException raise

问题 The accepted answer to boost::python Export Custom Exception shows how to export a custom exception class from C++, and Boost.Python custom exception class shows how to export an exception class that inherits from Python's Exception. How can I do both? That is expose an exception class that has custom methods to retrieve information and also have that class be derived from Python's Exception. 回答1: A workable solution, suggested by Jim Bosch on the C++-sig list, is to use composition instead

问题 With the StackOverflowException are the conditions to be thrown hardcoded or dependent on the machine the code is running on? I am almost certain the latter but have failed in my searches and don't ask enough questions here. 回答1: From the documentation: ... is thrown when the execution stack overflows because it contains too many nested method calls. Since the size of the stack is architecture-dependent and can even be overridden on a machine, yes, this value is not hard-coded, though it is