Ejemplo n.º 1
0
def runcell(cellname, filename=None, is_pdb=False):
    """
    Run a code cell from an editor as a file.

    Currently looks for code in an `ipython` property called `cell_code`.
    This property must be set by the editor prior to calling this function.
    This function deletes the contents of `cell_code` upon completion.

    Parameters
    ----------
    cellname : str or int
        Cell name or index.
    filename : str
        Needed to allow for proper traceback links.
    """
    if filename is None:
        filename = get_current_file_name()
        if filename is None:
            return
    try:
        filename = filename.decode('utf-8')
    except (UnicodeError, TypeError, AttributeError):
        # UnicodeError, TypeError --> eventually raised in Python 2
        # AttributeError --> systematically raised in Python 3
        pass
    ipython_shell = get_ipython()
    try:
        # Get code from spyder
        cell_code = _frontend_request().run_cell(cellname, filename)
    except Exception:
        _print("This command failed to be executed because an error occurred"
               " while trying to get the cell code from Spyder's"
               " editor. The error was:\n\n")
        get_ipython().showtraceback(exception_only=True)
        return

    if not cell_code:
        # Nothing to execute
        return

    # Trigger `post_execute` to exit the additional pre-execution.
    # See Spyder PR #7310.
    ipython_shell.events.trigger('post_execute')

    with NamespaceManager(filename, current_namespace=True) as namespace:
        try:
            if PY2:
                filename = maybe_encode(filename)
            exec(compile(cell_code, filename, 'exec'), namespace)
        except SystemExit as status:
            # ignore exit(0)
            if status.code:
                ipython_shell.showtraceback(exception_only=True)
        except BaseException as error:
            if isinstance(error, bdb.BdbQuit) and is_pdb:
                # Ignore BdbQuit if we are debugging, as it is expected.
                pass
            else:
                # We ignore the call to exec
                ipython_shell.showtraceback(tb_offset=1)
Ejemplo n.º 2
0
def runcell(cellname, filename=None, post_mortem=False):
    """
    Run a code cell from an editor as a file.

    Currently looks for code in an `ipython` property called `cell_code`.
    This property must be set by the editor prior to calling this function.
    This function deletes the contents of `cell_code` upon completion.

    Parameters
    ----------
    cellname : str or int
        Cell name or index.
    filename : str
        Needed to allow for proper traceback links.
    """
    if filename is None:
        filename = get_current_file_name()
        if filename is None:
            return
    else:
        # get_debugger replaces \\ by / so we must undo that here
        # Otherwise code caching doesn't work
        if os.name == 'nt':
            filename = filename.replace('/', '\\')
    try:
        filename = filename.decode('utf-8')
    except (UnicodeError, TypeError, AttributeError):
        # UnicodeError, TypeError --> eventually raised in Python 2
        # AttributeError --> systematically raised in Python 3
        pass
    ipython_shell = get_ipython()
    try:
        # Get code from spyder
        cell_code = frontend_request().run_cell(cellname, filename)
    except Exception:
        _print("This command failed to be executed because an error occurred"
               " while trying to get the cell code from Spyder's"
               " editor. The error was:\n\n")
        get_ipython().showtraceback(exception_only=True)
        return

    if not cell_code or cell_code.strip() == '':
        _print("Nothing to execute, this cell is empty.\n")
        return

    # Trigger `post_execute` to exit the additional pre-execution.
    # See Spyder PR #7310.
    ipython_shell.events.trigger('post_execute')
    try:
        file_code = get_file_code(filename)
    except Exception:
        file_code = None
    with NamespaceManager(filename,
                          current_namespace=True,
                          file_code=file_code) as (ns_globals, ns_locals):
        exec_code(cell_code,
                  filename,
                  ns_globals,
                  ns_locals,
                  post_mortem=post_mortem)
Ejemplo n.º 3
0
def _exec_cell(cellname,
               filename=None,
               post_mortem=False,
               stack_depth=0,
               exec_fun=None,
               canonic_filename=None):
    """
    Execute a code cell with a given exec function.
    """
    # Tell IPython to hide this frame (>7.16)
    __tracebackhide__ = True
    if filename is None:
        filename = get_current_file_name()
        if filename is None:
            return
    ipython_shell = get_ipython()
    try:
        # Get code from spyder
        cell_code = frontend_request(blocking=True).run_cell(
            cellname, filename)
    except Exception:
        print("This command failed to be executed because an error occurred"
              " while trying to get the cell code from Spyder's"
              " editor. The error was:\n\n")
        get_ipython().showtraceback(exception_only=True)
        return

    if not cell_code or cell_code.strip() == '':
        print("Nothing to execute, this cell is empty.\n")
        return

    # Trigger `post_execute` to exit the additional pre-execution.
    # See Spyder PR #7310.
    ipython_shell.events.trigger('post_execute')
    file_code = get_file_code(filename, save_all=False)

    # Here the remote filename has been used. It must now be valid locally.
    if canonic_filename is not None:
        filename = canonic_filename
    else:
        # Normalise the filename
        filename = canonic(filename)

    with NamespaceManager(filename,
                          current_namespace=True,
                          file_code=file_code,
                          stack_depth=stack_depth + 1) as (ns_globals,
                                                           ns_locals):
        return exec_code(cell_code,
                         filename,
                         ns_globals,
                         ns_locals,
                         post_mortem=post_mortem,
                         exec_fun=exec_fun,
                         capture_last_expression=True)
Ejemplo n.º 4
0
def runfile(filename=None,
            args=None,
            wdir=None,
            namespace=None,
            post_mortem=False,
            current_namespace=False):
    """
    Run filename
    args: command line arguments (string)
    wdir: working directory
    namespace: namespace for execution
    post_mortem: boolean, whether to enter post-mortem mode on error
    current_namespace: if true, run the file in the current namespace
    """
    # Tell IPython to hide this frame (>7.16)
    __tracebackhide__ = True
    ipython_shell = get_ipython()
    if filename is None:
        filename = get_current_file_name()
        if filename is None:
            return
    else:
        # get_debugger replaces \\ by / so we must undo that here
        # Otherwise code caching doesn't work
        if os.name == 'nt':
            filename = filename.replace('/', '\\')

    try:
        filename = filename.decode('utf-8')
    except (UnicodeError, TypeError, AttributeError):
        # UnicodeError, TypeError --> eventually raised in Python 2
        # AttributeError --> systematically raised in Python 3
        pass
    if PY2:
        filename = encode(filename)
    if __umr__.enabled:
        __umr__.run()
    if args is not None and not isinstance(args, basestring):
        raise TypeError("expected a character buffer object")
    try:
        file_code = get_file_code(filename)
    except Exception:
        _print("This command failed to be executed because an error occurred"
               " while trying to get the file code from Spyder's"
               " editor. The error was:\n\n")
        get_ipython().showtraceback(exception_only=True)
        return
    if file_code is None:
        _print("Could not get code from editor.\n")
        return

    with NamespaceManager(filename,
                          namespace,
                          current_namespace,
                          file_code=file_code) as (ns_globals, ns_locals):
        sys.argv = [filename]
        if args is not None:
            for arg in shlex.split(args):
                sys.argv.append(arg)
        if wdir is not None:
            if PY2:
                try:
                    wdir = wdir.decode('utf-8')
                except (UnicodeError, TypeError):
                    # UnicodeError, TypeError --> eventually raised in Python 2
                    pass
            if os.path.isdir(wdir):
                os.chdir(wdir)
                # See https://github.com/spyder-ide/spyder/issues/13632
                if "multiprocessing.process" in sys.modules:
                    try:
                        import multiprocessing.process
                        multiprocessing.process.ORIGINAL_DIR = os.path.abspath(
                            wdir)
                    except Exception:
                        pass
            else:
                _print("Working directory {} doesn't exist.\n".format(wdir))

        if __umr__.has_cython:
            # Cython files
            with io.open(filename, encoding='utf-8') as f:
                ipython_shell.run_cell_magic('cython', '', f.read())
        else:
            exec_code(file_code,
                      filename,
                      ns_globals,
                      ns_locals,
                      post_mortem=post_mortem)

        sys.argv = ['']
Ejemplo n.º 5
0
def runfile(filename=None,
            args=None,
            wdir=None,
            namespace=None,
            post_mortem=False,
            is_pdb=False,
            current_namespace=False):
    """
    Run filename
    args: command line arguments (string)
    wdir: working directory
    namespace: namespace for execution
    post_mortem: boolean, whether to enter post-mortem mode on error
    current_namespace: if true, run the file in the current namespace
    """
    ipython_shell = get_ipython()
    if filename is None:
        filename = get_current_file_name()
        if filename is None:
            return
    try:
        # Save the open files
        _frontend_request().save_files()
    except Exception:
        logger.debug("Could not save files before executing.")

    try:
        filename = filename.decode('utf-8')
    except (UnicodeError, TypeError, AttributeError):
        # UnicodeError, TypeError --> eventually raised in Python 2
        # AttributeError --> systematically raised in Python 3
        pass
    if __umr__.enabled:
        __umr__.run()
    if args is not None and not isinstance(args, basestring):
        raise TypeError("expected a character buffer object")

    with NamespaceManager(filename, namespace, current_namespace) as namespace:
        sys.argv = [filename]
        if args is not None:
            for arg in shlex.split(args):
                sys.argv.append(arg)
        if wdir is not None:
            try:
                wdir = wdir.decode('utf-8')
            except (UnicodeError, TypeError, AttributeError):
                # UnicodeError, TypeError --> eventually raised in Python 2
                # AttributeError --> systematically raised in Python 3
                pass
            os.chdir(wdir)
        if post_mortem:
            set_post_mortem()

        if __umr__.has_cython:
            # Cython files
            with io.open(filename, encoding='utf-8') as f:
                ipython_shell.run_cell_magic('cython', '', f.read())
        else:
            try:
                execfile(filename, namespace)
            except SystemExit as status:
                # ignore exit(0)
                if status.code:
                    ipython_shell.showtraceback(exception_only=True)
            except BaseException as error:
                if isinstance(error, bdb.BdbQuit) and is_pdb:
                    # Ignore BdbQuit if we are debugging, as it is expected.
                    pass
                else:
                    # We ignore the call to execfile and exec
                    ipython_shell.showtraceback(tb_offset=2)

        clear_post_mortem()
        sys.argv = ['']
Ejemplo n.º 6
0
def _exec_cell(cellname,
               filename=None,
               post_mortem=False,
               stack_depth=0,
               exec_fun=None):
    """
    Execute a code cell with a given exec function.
    """
    # Tell IPython to hide this frame (>7.16)
    __tracebackhide__ = True
    if filename is None:
        filename = get_current_file_name()
        if filename is None:
            return
    else:
        # get_debugger replaces \\ by / so we must undo that here
        # Otherwise code caching doesn't work
        if os.name == 'nt':
            filename = filename.replace('/', '\\')
    try:
        filename = filename.decode('utf-8')
    except (UnicodeError, TypeError, AttributeError):
        # UnicodeError, TypeError --> eventually raised in Python 2
        # AttributeError --> systematically raised in Python 3
        pass
    ipython_shell = get_ipython()
    try:
        # Get code from spyder
        cell_code = frontend_request(blocking=True).run_cell(
            cellname, filename)
    except Exception:
        _print("This command failed to be executed because an error occurred"
               " while trying to get the cell code from Spyder's"
               " editor. The error was:\n\n")
        get_ipython().showtraceback(exception_only=True)
        return

    if not cell_code or cell_code.strip() == '':
        _print("Nothing to execute, this cell is empty.\n")
        return

    # Trigger `post_execute` to exit the additional pre-execution.
    # See Spyder PR #7310.
    ipython_shell.events.trigger('post_execute')
    try:
        file_code = get_file_code(filename, save_all=False)
    except Exception:
        file_code = None

    # Normalise the filename
    filename = os.path.abspath(filename)
    filename = os.path.normcase(filename)

    with NamespaceManager(filename,
                          current_namespace=True,
                          file_code=file_code,
                          stack_depth=stack_depth + 1) as (ns_globals,
                                                           ns_locals):
        return exec_code(cell_code,
                         filename,
                         ns_globals,
                         ns_locals,
                         post_mortem=post_mortem,
                         exec_fun=exec_fun,
                         capture_last_expression=True)
Ejemplo n.º 7
0
def _exec_file(filename=None,
               args=None,
               wdir=None,
               namespace=None,
               post_mortem=False,
               current_namespace=False,
               stack_depth=0,
               exec_fun=None,
               canonic_filename=None):
    # Tell IPython to hide this frame (>7.16)
    __tracebackhide__ = True
    ipython_shell = get_ipython()
    if filename is None:
        filename = get_current_file_name()
        if filename is None:
            return

    if __umr__.enabled:
        __umr__.run()
    if args is not None and not isinstance(args, str):
        raise TypeError("expected a character buffer object")

    try:
        file_code = get_file_code(filename, raise_exception=True)
    except Exception:
        print("This command failed to be executed because an error occurred"
              " while trying to get the file code from Spyder's"
              " editor. The error was:\n\n")
        get_ipython().showtraceback(exception_only=True)
        return

    # Here the remote filename has been used. It must now be valid locally.
    if canonic_filename is not None:
        filename = canonic_filename
    else:
        filename = canonic(filename)

    with NamespaceManager(filename,
                          namespace,
                          current_namespace,
                          file_code=file_code,
                          stack_depth=stack_depth + 1) as (ns_globals,
                                                           ns_locals):
        sys.argv = [filename]
        if args is not None:
            for arg in shlex.split(args):
                sys.argv.append(arg)

        if "multiprocessing" in sys.modules:
            # See https://github.com/spyder-ide/spyder/issues/16696
            try:
                sys.modules['__mp_main__'] = sys.modules['__main__']
            except Exception:
                pass

        if wdir is not None:
            if os.path.isdir(wdir):
                os.chdir(wdir)
                # See https://github.com/spyder-ide/spyder/issues/13632
                if "multiprocessing.process" in sys.modules:
                    try:
                        import multiprocessing.process
                        multiprocessing.process.ORIGINAL_DIR = os.path.abspath(
                            wdir)
                    except Exception:
                        pass
            else:
                print("Working directory {} doesn't exist.\n".format(wdir))

        try:
            if __umr__.has_cython:
                # Cython files
                with io.open(filename, encoding='utf-8') as f:
                    ipython_shell.run_cell_magic('cython', '', f.read())
            else:
                exec_code(file_code,
                          filename,
                          ns_globals,
                          ns_locals,
                          post_mortem=post_mortem,
                          exec_fun=exec_fun,
                          capture_last_expression=False,
                          global_warning=not current_namespace)
        finally:
            sys.argv = ['']