diff options
Diffstat (limited to 'TurtleArt/talogo.py')
| -rw-r--r-- | TurtleArt/talogo.py | 629 |
1 files changed, 539 insertions, 90 deletions
diff --git a/TurtleArt/talogo.py b/TurtleArt/talogo.py index 0b178c6..775af0f 100644 --- a/TurtleArt/talogo.py +++ b/TurtleArt/talogo.py @@ -22,9 +22,12 @@ #THE SOFTWARE. import gtk +import gobject from time import time, sleep from operator import isNumberType +import os +from os.path import exists as os_path_exists from UserDict import UserDict try: @@ -33,10 +36,17 @@ try: except ImportError: GRID_CELL_SIZE = 55 -from taconstants import (TAB_LAYER, DEFAULT_SCALE, PREFIX_DICTIONARY) +import traceback + +from tablock import (Block, Media, media_blocks_dictionary) +from taconstants import (TAB_LAYER, DEFAULT_SCALE, ICON_SIZE) +from tajail import (myfunc, myfunc_import) from tapalette import (block_names, value_blocks) -from tautils import (get_pixbuf_from_journal, convert, data_from_file, - text_media_type, round_int, debug_output, find_group) +from tatype import (TATypeError, TYPES_NUMERIC) +from tautils import (get_pixbuf_from_journal, data_from_file, get_stack_name, + text_media_type, round_int, debug_output, find_group, + get_path, image_to_base64, data_to_string, data_to_file, + get_load_name, chooser_dialog) try: from util.RtfParser import RtfTextOnly @@ -46,7 +56,6 @@ except ImportError: from gettext import gettext as _ -media_blocks_dictionary = {} # new media blocks get added here primitive_dictionary = {} # new block primitives get added here @@ -79,7 +88,21 @@ class logoerror(Exception): return str(self.value) -class HiddenBlock: +class NegativeRootError(BaseException): + """ Similar to the ZeroDivisionError, this error is raised at runtime + when trying to computer the square root of a negative number. """ + + DEFAULT_MESSAGE = 'square root of negative number' + + def __init__(self, neg_value=None, message=DEFAULT_MESSAGE): + self.neg_value = neg_value + self.message = message + + def __str__(self): + return str(self.message) + + +class HiddenBlock(Block): def __init__(self, name, value=None): self.name = name @@ -92,6 +115,7 @@ class HiddenBlock: self.connections = [] self.docks = [] + # Utility functions @@ -142,7 +166,6 @@ class LogoCode: self.hidden_turtle = None - self.keyboard = 0 self.trace = 0 self.update_values = False self.gplay = None @@ -187,6 +210,14 @@ class LogoCode: self.oblist[string] = sym return sym + def get_prim_callable(self, name): + """ Return the callable primitive associated with the given name """ + sym = self.oblist.get(name) + if sym is not None: + return sym.fcn + else: + return None + def run_blocks(self, code): """Run code generated by generate_code(). """ @@ -234,27 +265,17 @@ class LogoCode: blk = action_blk for b in blocks: - if b.name == 'hat1': - code = self._blocks_to_code(b) - self.stacks['stack1'] = self._readline(code) - elif b.name == 'hat2': - code = self._blocks_to_code(b) - self.stacks['stack2'] = self._readline(code) - elif b.name == 'hat': - if b.connections is not None and len(b.connections) > 1 and \ - b.connections[1] is not None: + if b.name in ('hat', 'hat1', 'hat2'): + stack_name = get_stack_name(b) + if stack_name: + stack_key = self._get_stack_key(stack_name) code = self._blocks_to_code(b) - try: - x = b.connections[1].values[0] - except IndexError: - self.tw.showlabel('#nostack') - self.tw.showblocks() - self.tw.running_blocks = False - return None - if isinstance(convert(x, float, False), float): - if int(float(x)) == x: - x = int(x) - self.stacks['stack3' + str(x)] = self._readline(code) + self.stacks[stack_key] = self._readline(code) + else: + self.tw.showlabel('#nostack') + self.tw.showblocks() + self.tw.running_blocks = False + return None code = self._blocks_to_code(blk) @@ -278,7 +299,8 @@ class LogoCode: return ['%nothing%', '%nothing%'] code = [] dock = blk.docks[0] - if len(dock) > 4: # There could be a '(', ')', '[' or ']'. + # There could be a '(', ')', '[' or ']'. + if len(dock) > 4 and dock[4] in ('[', ']', ']['): code.append(dock[4]) if blk.primitive is not None: # make a tuple (prim, blk) if blk in self.tw.block_list.list: @@ -286,37 +308,20 @@ class LogoCode: self.tw.block_list.list.index(blk))) else: code.append(blk.primitive) # Hidden block - elif len(blk.values) > 0: # Extract the value from content blocks. - if blk.name == 'number': - try: - code.append(float(blk.values[0])) - except ValueError: - code.append(float(ord(blk.values[0][0]))) - elif blk.name == 'string' or \ - blk.name == 'title': # deprecated block - if isinstance(blk.values[0], (float, int)): - if int(blk.values[0]) == blk.values[0]: - blk.values[0] = int(blk.values[0]) - code.append('#s' + str(blk.values[0])) - else: - code.append('#s' + blk.values[0]) - elif blk.name in PREFIX_DICTIONARY: - if blk.values[0] is not None: - code.append(PREFIX_DICTIONARY[blk.name] + - str(blk.values[0])) - else: - code.append(PREFIX_DICTIONARY[blk.name] + 'None') - elif blk.name in media_blocks_dictionary: - code.append('#smedia_' + blk.name.upper()) - else: + elif blk.is_value_block(): # Extract the value from content blocks. + value = blk.get_value() + if value is None: return ['%nothing%'] + else: + code.append(value) else: return ['%nothing%'] if blk.connections is not None and len(blk.connections) > 0: for i in range(1, len(blk.connections)): b = blk.connections[i] dock = blk.docks[i] - if len(dock) > 4: # There could be a '(', ')', '[' or ']'. + # There could be a '(', ')', '[' or ']'. + if len(dock) > 4 and dock[4] in ('[', ']', ']['): for c in dock[4]: code.append(c) if b is not None: @@ -346,7 +351,9 @@ class LogoCode: bindex = None if isinstance(token, tuple): (token, bindex) = token - if isNumberType(token): + if isinstance(token, Media): + res.append(token) + elif isNumberType(token): res.append(token) elif token.isdigit(): res.append(float(token)) @@ -401,7 +408,7 @@ class LogoCode: self.istack.append(self.step) self.step = fcn(*(args)) - def evline(self, blklist): + def evline(self, blklist, call_me=True): """ Evaluate a line of code from the list. """ oldiline = self.iline self.iline = blklist[:] @@ -432,7 +439,7 @@ class LogoCode: (token, self.bindex) = self.iline[1] # Process the token and any arguments. - self.icall(self._eval) + self.icall(self._eval, call_me) yield True # Time to unhighlight the current block. @@ -455,7 +462,7 @@ class LogoCode: self.tw.display_coordinates() yield True - def _eval(self): + def _eval(self, call_me=True): """ Evaluate the next token on the line of code we are processing. """ token = self.iline.pop(0) bindex = None @@ -467,7 +474,7 @@ class LogoCode: # We highlight blocks here in case an error occurs... if not self.tw.hide and bindex is not None: self.tw.block_list.list[bindex].highlight() - self.icall(self._evalsym, token) + self.icall(self._evalsym, token, call_me) yield True # and unhighlight if everything was OK. if not self.tw.hide and bindex is not None: @@ -479,7 +486,7 @@ class LogoCode: self.ireturn(res) yield True - def _evalsym(self, token): + def _evalsym(self, token, call_me): """ Process primitive associated with symbol token """ self._undefined_check(token) oldcfun, oldarglist = self.cfun, self.arglist @@ -489,35 +496,53 @@ class LogoCode: self.tw.showblocks() self.tw.display_coordinates() raise logoerror("#noinput") + is_Primitive = type(self.cfun.fcn).__name__ == 'Primitive' + is_PrimitiveDisjunction = type(self.cfun.fcn).__name__ == \ + 'PrimitiveDisjunction' + call_args = not (is_Primitive or is_PrimitiveDisjunction) for i in range(token.nargs): self._no_args_check() - self.icall(self._eval) + self.icall(self._eval, call_args) yield True self.arglist.append(self.iresult) + need_to_pop_istack = False if self.cfun.rprim: if isinstance(self.cfun.fcn, list): # debug_output('evalsym rprim list: %s' % (str(token)), # self.tw.running_sugar) - self.icall(self._ufuncall, self.cfun.fcn) + self.icall(self._ufuncall, self.cfun.fcn, call_args) yield True + need_to_pop_istack = True + result = None else: - self.icall(self.cfun.fcn, *self.arglist) - yield True - result = None + if call_me: + self.icall(self.cfun.fcn, *self.arglist) + yield True + need_to_pop_istack = True + result = None + else: + result = (self.cfun.fcn, ) + tuple(self.arglist) else: - result = self.cfun.fcn(self, *self.arglist) + need_to_pop_istack = True + if call_me: + result = self.cfun.fcn(self, *self.arglist) + else: + result = (self.cfun.fcn, self) + tuple(self.arglist) self.cfun, self.arglist = oldcfun, oldarglist if self.arglist is not None and result is None: self.tw.showblocks() raise logoerror("%s %s %s" % (oldcfun.name, _("did not output to"), self.cfun.name)) - self.ireturn(result) - yield True + if need_to_pop_istack: + self.ireturn(result) + yield True + else: + self.iresult = result - def _ufuncall(self, body): + def _ufuncall(self, body, call_me): """ ufuncall """ - self.ijmp(self.evline, body) + self.ijmp(self.evline, body, call_me) yield True def doevalstep(self): @@ -526,7 +551,9 @@ class LogoCode: try: while (_millisecond() - starttime) < 120: try: - if self.step is not None: + if self.step is None: + return False + if self.tw.running_turtleart: try: self.step.next() except ValueError: @@ -534,23 +561,60 @@ class LogoCode: self.tw.running_sugar) self.tw.running_blocks = False return False + except TATypeError as tte: + # TODO insert the correct block name + # (self.cfun.name is only the name of the + # outermost block in this statement/ line of code) + # use logoerror("#notanumber") when possible + if (tte.req_type in TYPES_NUMERIC and + tte.bad_type not in TYPES_NUMERIC): + raise logoerror("#notanumber") + else: + raise logoerror( + "%s %s %s %s" % + (self.cfun.name, _("doesn't like"), + str(tte.bad_value), _("as input"))) + except ZeroDivisionError: + raise logoerror("#zerodivide") + except NegativeRootError: + raise logoerror("#negroot") + except IndexError: + raise logoerror("#emptyheap") else: - return False + try: + self.step.next() + except BaseException as error: + if isinstance(error, (StopIteration, + logoerror)): + raise error + else: + traceback.print_exc() + self.tw.showlabel( + 'status', '%s: %s' % + (type(error).__name__, str(error))) + return False except StopIteration: - # self.tw.turtles.show_all() - if self.hidden_turtle is not None: - self.hidden_turtle.show() - self.hidden_turtle = None + if self.tw.running_turtleart: + # self.tw.turtles.show_all() + if self.hidden_turtle is not None: + self.hidden_turtle.show() + self.hidden_turtle = None + else: + self.tw.turtles.get_active_turtle().show() + self.tw.running_blocks = False + return False else: - self.tw.turtles.get_active_turtle().show() - self.tw.running_blocks = False - return False + self.ireturn() except logoerror, e: - self.tw.showblocks() - self.tw.display_coordinates() - self.tw.showlabel('syntaxerror', str(e)) - self.tw.turtles.show_all() - self.tw.running_blocks = False + if self.tw.running_turtleart: + self.tw.showblocks() + self.tw.display_coordinates() + self.tw.showlabel('syntaxerror', str(e)) + self.tw.turtles.show_all() + self.tw.running_blocks = False + else: + traceback.print_exc() + self.tw.showlabel('status', 'logoerror: ' + str(e)) return False return True @@ -597,19 +661,265 @@ class LogoCode: name.nargs, name.fcn = 0, body name.rprim = True + def prim_start(self, *ignored_args): + ''' Start block: recenter ''' + if self.tw.running_sugar: + self.tw.activity.recenter() + def prim_clear(self): """ Clear screen """ self.tw.clear_plugins() + self.stop_playing_media() + self.reset_scale() + self.reset_timer() + self.clear_value_blocks() + self.reset_internals() + self.tw.canvas.clearscreen() + self.tw.turtles.reset_turtles() + + def stop_playing_media(self): if self.tw.gst_available: from tagplay import stop_media stop_media(self) - self.tw.canvas.clearscreen() - self.tw.turtles.reset_turtles() + + def reset_scale(self): self.scale = DEFAULT_SCALE - self.hidden_turtle = None + + def reset_timer(self): self.start_time = time() - self.clear_value_blocks() - self.tw.activity.restore_state() + + def get_start_time(self): + return self.start_time + + def reset_internals(self): + self.hidden_turtle = None + if self.tw.running_turtleart: + self.tw.activity.restore_state() + + def prim_loop(self, controller, blklist): + """ Execute a loop + controller -- iterator that yields True iff the loop should be run + once more OR a callable that returns such an iterator + blklist -- list of callables that form the loop body """ + if not hasattr(controller, "next"): + if callable(controller): + controller = controller() + else: + raise TypeError("a loop controller must be either an iterator " + "or a callable that returns an iterator") + while next(controller): + self.icall(self.evline, blklist[:]) + yield True + if self.procstop: + break + self.ireturn() + yield True + + def prim_clamp(self, blklist): + """ Run clamp blklist """ + self.icall(self.evline, blklist[:]) + yield True + self.procstop = False + self.ireturn() + yield True + + def set_scale(self, scale): + ''' Set scale for media blocks ''' + self.scale = scale + + def get_scale(self): + ''' Set scale for media blocks ''' + return self.scale + + def prim_stop_stack(self): + """ Stop execution of a stack """ + self.procstop = True + + def prim_turtle(self, name): + self.tw.turtles.set_turtle(name) + + def prim_wait(self, wait_time): + """ Show the turtle while we wait """ + self.tw.turtles.get_active_turtle().show() + endtime = _millisecond() + wait_time * 1000. + while _millisecond() < endtime: + sleep(wait_time / 10.) + yield True + self.tw.turtles.get_active_turtle().hide() + self.ireturn() + yield True + + def prim_if(self, boolean, blklist): + """ If bool, do list """ + if boolean: + self.icall(self.evline, blklist[:]) + yield True + self.ireturn() + yield True + + def prim_ifelse(self, boolean, list1, list2): + """ If bool, do list1, else do list2 """ + if boolean: + self.ijmp(self.evline, list1[:]) + yield True + else: + self.ijmp(self.evline, list2[:]) + yield True + + def prim_set_box(self, name, value): + """ Store value in named box """ + (key, is_native) = self._get_box_key(name) + self.boxes[key] = value + if is_native: + if self.update_values: + self.update_label_value(name, value) + else: + if self.update_values: + self.update_label_value('box', value, label=name) + + def prim_get_box(self, name): + """ Retrieve value from named box """ + (key, is_native) = self._get_box_key(name) + try: + return self.boxes[key] + except KeyError: + # FIXME this looks like a syntax error in the GUI + raise logoerror("#emptybox") + + def _get_box_key(self, name): + """ Return the key used for this box in the boxes dictionary and a + boolean indicating whether it is a 'native' box """ + if name in ('box1', 'box2'): + return (name, True) + else: + # make sure '5' and '5.0' point to the same box + if isinstance(name, (basestring, int, long)): + try: + name = float(name) + except ValueError: + pass + return ('box3_' + str(name), False) + + def prim_define_stack(self, name): + """ Top of a named stack """ + pass + + def prim_invoke_stack(self, name): + """ Process a named stack """ + key = self._get_stack_key(name) + if self.stacks.get(key) is None: + raise logoerror("#nostack") + self.icall(self.evline, self.stacks[key][:]) + yield True + self.procstop = False + self.ireturn() + yield True + + def _get_stack_key(self, name): + """ Return the key used for this stack in the stacks dictionary """ + if name in ('stack1', 'stack2'): + return name + else: + # make sure '5' and '5.0' point to the same action stack + if isinstance(name, (int, long, float)): + if int(name) == name: + name = int(name) + else: + name = float(name) + return 'stack3' + str(name) + + def load_heap(self, path): + """ Load FILO from file """ + if self.tw.running_sugar: + # Choose a datastore object and push data to heap (Sugar only) + chooser_dialog(self.tw.parent, path, self.push_file_data_to_heap) + else: + if not os.path.exists(path): + path, self.tw.load_save_folder = get_load_name( + '.*', self.tw.load_save_folder) + if path is None: + return + + data = data_from_file(path) + if data is not None: + for val in data: + self.heap.append(val) + + def save_heap(self, path): + """ save FILO to file """ + if self.tw.running_sugar: + from sugar import profile + from sugar.datastore import datastore + from sugar.activity import activity + + # Save JSON-encoded heap to temporary file + heap_file = os.path.join(get_path(activity, 'instance'), + str(path) + '.txt') + data_to_file(self.heap, heap_file) + + # Create a datastore object + dsobject = datastore.create() + + # Write any metadata (specifically set the title of the file + # and specify that this is a plain text file). + dsobject.metadata['title'] = str(path) + dsobject.metadata['icon-color'] = profile.get_color().to_string() + dsobject.metadata['mime_type'] = 'text/plain' + dsobject.set_file_path(heap_file) + datastore.write(dsobject) + dsobject.destroy() + else: + heap_file = path + data_to_file(self.heap, heap_file) + + def get_heap(self): + return self.heap + + def reset_heap(self): + """ Reset heap to an empty list """ + # empty the list rather than setting it to a new empty list object, + # so the object references are preserved + while self.heap: + self.heap.pop() + + def prim_myblock(self, *args): + """ Run Python code imported from Journal """ + if self.bindex is not None and self.bindex in self.tw.myblock: + try: + myfunc_import(self, self.tw.myblock[self.bindex], args) + except: + raise logoerror("#syntaxerror") + + def prim_myfunction(self, f, *args): + """ Programmable block (Call tajail.myfunc and convert any errors to + logoerrors) """ + try: + y = myfunc(f, args) + if str(y) == 'nan': + debug_output('Python function returned NAN', + self.tw.running_sugar) + self.stop_logo() + raise logoerror("#notanumber") + else: + return y + except ZeroDivisionError: + self.stop_logo() + raise logoerror("#zerodivide") + except ValueError, e: + self.stop_logo() + raise logoerror('#' + str(e)) + except SyntaxError, e: + self.stop_logo() + raise logoerror('#' + str(e)) + except NameError, e: + self.stop_logo() + raise logoerror('#' + str(e)) + except OverflowError: + self.stop_logo() + raise logoerror("#overflowerror") + except TypeError: + self.stop_logo() + raise logoerror("#notanumber") def clear_value_blocks(self): if not hasattr(self, 'value_blocks_to_update'): @@ -686,6 +996,145 @@ class LogoCode: for blk in drag_group: blk.spr.move_relative((dx, 0)) + def reskin(self, obj): + """ Reskin the turtle with an image from a file """ + scale = int(ICON_SIZE * float(self.scale) / DEFAULT_SCALE) + if scale < 1: + return + self.filepath = None + self.dsobject = None + + if os_path_exists(obj.value): # file path + self.filepath = obj.value + elif self.tw.running_sugar: # datastore object + from sugar.datastore import datastore + try: + self.dsobject = datastore.get(obj.value) + except: + debug_output("Couldn't find dsobject %s" % + (obj.value), self.tw.running_sugar) + if self.dsobject is not None: + self.filepath = self.dsobject.file_path + + if self.filepath is None: + self.tw.showlabel('nojournal', self.filepath) + return + + pixbuf = None + try: + pixbuf = gtk.gdk.pixbuf_new_from_file_at_size( + self.filepath, scale, scale) + except: + self.tw.showlabel('nojournal', self.filepath) + debug_output("Couldn't open skin %s" % (self.filepath), + self.tw.running_sugar) + if pixbuf is not None: + self.tw.turtles.get_active_turtle().set_shapes([pixbuf]) + pen_state = self.tw.turtles.get_active_turtle().get_pen_state() + if pen_state: + self.tw.turtles.get_active_turtle().set_pen_state(False) + self.tw.turtles.get_active_turtle().forward(0) + if pen_state: + self.tw.turtles.get_active_turtle().set_pen_state(True) + + if self.tw.sharing(): + if self.tw.running_sugar: + tmp_path = get_path(self.tw.activity, 'instance') + else: + tmp_path = '/tmp' + tmp_file = os.path.join(get_path(self.tw.activity, 'instance'), + 'tmpfile.png') + pixbuf.save(tmp_file, 'png', {'quality': '100'}) + data = image_to_base64(tmp_file, tmp_path) + height = pixbuf.get_height() + width = pixbuf.get_width() + event = 'R|%s' % (data_to_string([self.tw.nick, + [round_int(width), + round_int(height), + data]])) + gobject.idle_add(self.tw.send_event, event) + os.remove(tmp_file) + + def showlist(self, objects): + """ Display list of media objects """ + x = (self.tw.turtles.get_active_turtle().get_xy()[0] / + self.tw.coord_scale) + y = (self.tw.turtles.get_active_turtle().get_xy()[1] / + self.tw.coord_scale) + for obj in objects: + self.tw.turtles.get_active_turtle().set_xy(x, y, pendown=False) + self.show(obj) + y -= int(self.tw.canvas.textsize * self.tw.lead) + + def show(self, obj, center=False): + """ Show is the general-purpose media-rendering block. """ + # media + if isinstance(obj, Media) and obj.value: + self.filepath = None + self.pixbuf = None # Camera writes directly to pixbuf + self.dsobject = None + + # camera snapshot + if obj.value.lower() in media_blocks_dictionary: + media_blocks_dictionary[obj.value.lower()]() + # file path + elif os_path_exists(obj.value): + self.filepath = obj.value + # datastore object + elif self.tw.running_sugar: + from sugar.datastore import datastore + try: + self.dsobject = datastore.get(obj.value) + except: + debug_output("Couldn't find dsobject %s" % + (obj.value), self.tw.running_sugar) + if self.dsobject is not None: + self.filepath = self.dsobject.file_path + + if self.pixbuf is not None: + self.insert_image(center=center, pixbuf=True) + elif self.filepath is None: + if self.dsobject is not None: + self.tw.showlabel( + 'nojournal', + self.dsobject.metadata['title']) + else: + self.tw.showlabel('nojournal', obj.value) + debug_output("Couldn't open %s" % (obj.value), + self.tw.running_sugar) + elif obj.type == 'media': + self.insert_image(center=center) + elif obj.type == 'descr': + mimetype = None + if self.dsobject is not None and \ + 'mime_type' in self.dsobject.metadata: + mimetype = self.dsobject.metadata['mime_type'] + description = None + if self.dsobject is not None and \ + 'description' in self.dsobject.metadata: + description = self.dsobject.metadata[ + 'description'] + self.insert_desc(mimetype, description) + elif obj.type == 'audio': + self.play_sound() + elif obj.type == 'video': + self.play_video() + + if self.dsobject is not None: + self.dsobject.destroy() + + # text or number + elif isinstance(obj, (basestring, float, int)): + if isinstance(obj, (float, int)): + obj = round_int(obj) + x, y = self.x2tx(), self.y2ty() + if center: + y -= self.tw.canvas.textsize + self.tw.turtles.get_active_turtle().draw_text( + obj, x, y, + int(self.tw.canvas.textsize * self.scale / 100.), + self.tw.canvas.width - x) + def push_file_data_to_heap(self, dsobject): """ push contents of a data store object (assuming json encoding) """ data = data_from_file(dsobject.file_path) @@ -861,7 +1310,7 @@ class LogoCode: def _expand_forever(self, b, blk, blocks): """ Expand a while or until block into: forever, ifelse, stopstack - Expand a forever block to run in a separate stack + Expand a forever block to run in a separate stack Parameters: the loop block, the top block, all blocks. Return the start block of the expanded loop, and all blocks.""" @@ -911,7 +1360,7 @@ class LogoCode: first_label_blk = HiddenBlock('string', value=action_flow_name) # Assign new connections and build the docks - if inflow is not None: + if inflow is not None and b in inflow.connections: i = inflow.connections.index(b) if until_blk and whileflow is not None: inflow.connections[i] = action_first @@ -980,14 +1429,14 @@ class LogoCode: # Create a separate stacks for the forever loop and the whileflow code = self._blocks_to_code(forever_blk) - self.stacks['stack3' + str(action_name)] = self._readline(code) + self.stacks[self._get_stack_key(action_name)] = self._readline(code) if until_blk and whileflow is not None: # Create a stack from the whileflow to be called from # action_first, but then reconnect it to the ifelse block c = whileflow.connections[0] whileflow.connections[0] = None code = self._blocks_to_code(whileflow) - self.stacks['stack3' + str(action_flow_name)] = \ + self.stacks[self._get_stack_key(action_flow_name)] = \ self._readline(code) whileflow.connections[0] = c |