Mirror
/
cpython
mirror of https://github.com/python/cpython
4
1
Fork 0
Code Issues Releases Wiki Activity
cpython/Lib/idlelib/PyShell.py

1113 lines
36 KiB
Python
Raw Blame History

#! /usr/bin/env python
import os
import sys
import string
import getopt
import re
import socket
import time
import traceback
import types
import warnings
import linecache
from code import InteractiveInterpreter
from Tkinter import *
import tkMessageBox
from EditorWindow import EditorWindow, fixwordbreaks
from FileList import FileList
from ColorDelegator import ColorDelegator
from UndoDelegator import UndoDelegator
from OutputWindow import OutputWindow
from configHandler import idleConf
import idlever
import os.path
import rpc
import RemoteDebugger
IDENTCHARS = string.ascii_letters + string.digits + "_"
# XX hardwire this for now, remove later KBK 09Jun02
use_subprocess = 1 # Set to 1 to spawn subprocess for command execution
# Change warnings module to write to sys.__stderr__
try:
import warnings
except ImportError:
pass
else:
def idle_showwarning(message, category, filename, lineno):
file = sys.__stderr__
file.write(warnings.formatwarning(message, category, filename, lineno))
warnings.showwarning = idle_showwarning
def linecache_checkcache():
"""Extend linecache.checkcache to preserve the <pyshell#...> entries
Rather than repeating the linecache code, patch it by saving the pyshell#
entries, call linecache.checkcache(), and then restore the saved
entries.
"""
orig_checkcache=linecache.checkcache
cache = linecache.cache
save = {}
for filename in cache.keys():
if filename[:1] + filename[-1:] == '<>':
save[filename] = cache[filename]
orig_checkcache()
cache.update(save)
linecache.checkcache = linecache_checkcache
class PyShellEditorWindow(EditorWindow):
"Regular text edit window when a shell is present"
# XXX KBK 19Oct02 Breakpoints are currently removed if module is
# changed or closed. Future plans include saving breakpoints in a
# project file and possibly preserving breakpoints by changing their
# line numbers as a module is modified.
def __init__(self, *args):
self.breakpoints = []
apply(EditorWindow.__init__, (self,) + args)
self.text.bind("<<set-breakpoint-here>>", self.set_breakpoint_here)
self.text.bind("<<clear-breakpoint-here>>", self.clear_breakpoint_here)
self.text.bind("<<open-python-shell>>", self.flist.open_shell)
self.breakpointPath=os.path.join(idleConf.GetUserCfgDir(), 'breakpoints.lst')
# whenever a file is changed, restore breakpoints
if self.io.filename: self.restore_file_breaks()
def filename_changed_hook(self,old_hook=self.io.filename_change_hook):
self.restore_file_breaks()
old_hook()
self.io.set_filename_change_hook(filename_changed_hook)
rmenu_specs = [("Set Breakpoint", "<<set-breakpoint-here>>"),
("Clear Breakpoint", "<<clear-breakpoint-here>>")]
def set_breakpoint(self, lineno):
text = self.text
filename = self.io.filename
text.tag_add("BREAK", "%d.0" % lineno, "%d.0" % (lineno+1))
try:
i = self.breakpoints.index(lineno)
except ValueError: # only add if missing, i.e. do once
self.breakpoints.append(lineno)
try: # update the subprocess debugger
debug = self.flist.pyshell.interp.debugger
debug.set_breakpoint_here(filename, lineno)
except: # but debugger may not be active right now....
pass
def set_breakpoint_here(self, event=None):
text = self.text
filename = self.io.filename
if not filename:
text.bell()
return
lineno = int(float(text.index("insert")))
self.set_breakpoint(lineno)
def clear_breakpoint_here(self, event=None):
text = self.text
filename = self.io.filename
if not filename:
text.bell()
return
lineno = int(float(text.index("insert")))
try:
self.breakpoints.remove(lineno)
except:
pass
text.tag_remove("BREAK", "insert linestart",\
"insert lineend +1char")
try:
debug = self.flist.pyshell.interp.debugger
debug.clear_breakpoint_here(filename, lineno)
except:
pass
def clear_file_breaks(self):
if self.breakpoints:
text = self.text
filename = self.io.filename
if not filename:
text.bell()
return
self.breakpoints = []
text.tag_remove("BREAK", "1.0", END)
try:
debug = self.flist.pyshell.interp.debugger
debug.clear_file_breaks(filename)
except:
pass
def store_file_breaks(self):
if not self.breakpoints:
return
filename=self.io.filename
try:
lines=open(self.breakpointPath,"r").readlines()
except IOError:
lines=[]
new_file=open(self.breakpointPath,"w")
for line in lines:
if not line.startswith(filename+"="):
new_file.write(line)
new_file.write(filename+"="+`self.get_current_breaks()`)
new_file.close()
def restore_file_breaks(self):
self.text.update() # this enables setting "BREAK" tags to be visible
filename=self.io.filename
lines=open(self.breakpointPath,"r").readlines()
for line in lines:
if line.startswith(filename+"="):
breakpoint_linenumbers=eval(line[len(filename)+1:])
for breakpoint_linenumber in breakpoint_linenumbers:
self.set_breakpoint(breakpoint_linenumber)
def get_current_breaks(self):
#
# retrieves all the breakpoints in the current window
#
text = self.text
lines = text.tag_ranges("BREAK")
result = [int(float((lines[i]))) for i in range(0,len(lines),2)]
return result
def saved_change_hook(self):
"Extend base method - clear breaks if module is modified"
if not self.get_saved():
self.clear_file_breaks()
EditorWindow.saved_change_hook(self)
def _close(self):
"Extend base method - clear breaks when module is closed"
self.store_file_breaks()
self.clear_file_breaks()
EditorWindow._close(self)
class PyShellFileList(FileList):
"Extend base class: file list when a shell is present"
EditorWindow = PyShellEditorWindow
pyshell = None
def open_shell(self, event=None):
if self.pyshell:
self.pyshell.wakeup()
else:
self.pyshell = PyShell(self)
self.pyshell.begin()
return self.pyshell
class ModifiedColorDelegator(ColorDelegator):
"Extend base class: colorizer for the shell window itself"
def __init__(self):
ColorDelegator.__init__(self)
self.LoadTagDefs()
def recolorize_main(self):
self.tag_remove("TODO", "1.0", "iomark")
self.tag_add("SYNC", "1.0", "iomark")
ColorDelegator.recolorize_main(self)
def LoadTagDefs(self):
ColorDelegator.LoadTagDefs(self)
theme = idleConf.GetOption('main','Theme','name')
self.tagdefs.update({
"stdin": {'background':None,'foreground':None},
"stdout": idleConf.GetHighlight(theme, "stdout"),
"stderr": idleConf.GetHighlight(theme, "stderr"),
"console": idleConf.GetHighlight(theme, "console"),
"ERROR": idleConf.GetHighlight(theme, "error"),
None: idleConf.GetHighlight(theme, "normal"),
})
class ModifiedUndoDelegator(UndoDelegator):
"Extend base class: forbid insert/delete before the I/O mark"
def insert(self, index, chars, tags=None):
try:
if self.delegate.compare(index, "<", "iomark"):
self.delegate.bell()
return
except TclError:
pass
UndoDelegator.insert(self, index, chars, tags)
def delete(self, index1, index2=None):
try:
if self.delegate.compare(index1, "<", "iomark"):
self.delegate.bell()
return
except TclError:
pass
UndoDelegator.delete(self, index1, index2)
class ModifiedInterpreter(InteractiveInterpreter):
def __init__(self, tkconsole):
self.tkconsole = tkconsole
locals = sys.modules['__main__'].__dict__
InteractiveInterpreter.__init__(self, locals=locals)
self.save_warnings_filters = None
port = 8833
rpcclt = None
rpcpid = None
def spawn_subprocess(self):
w = ['-W' + s for s in sys.warnoptions]
args = [self.find_executable()] + w \
+ ["-c", "__import__('run').main()", str(self.port)]
self.rpcpid = os.spawnv(os.P_NOWAIT, args[0], args)
def find_executable(self):
if sys.platform == 'darwin' and sys.executable.count('.app'):
# On Mac OS X, avoid calling sys.executable because it ignores
# command-line options (sys.executable is an applet)
#
# Instead, find the executable by looking relative to
# sys.prefix.
executable = os.path.join(sys.prefix, 'Resources',
'Python.app', 'Contents',
'MacOS', 'python')
return executable
else:
return sys.executable
def start_subprocess(self):
addr = ("localhost", self.port)
self.spawn_subprocess()
# Idle starts listening for connection on localhost
for i in range(6):
time.sleep(i)
try:
self.rpcclt = rpc.RPCClient(addr)
break
except socket.error, err:
if i < 3:
print>>sys.__stderr__, ". ",
else:
print>>sys.__stderr__,"\nIdle socket error: " + err[1]\
+ ", retrying..."
else:
display_port_binding_error()
return
# Accept the connection from the Python execution server
self.rpcclt.accept()
self.rpcclt.register("stdin", self.tkconsole)
self.rpcclt.register("stdout", self.tkconsole.stdout)
self.rpcclt.register("stderr", self.tkconsole.stderr)
self.rpcclt.register("flist", self.tkconsole.flist)
self.poll_subprocess()
def restart_subprocess(self):
# close only the subprocess debugger
debug = self.getdebugger()
if debug:
RemoteDebugger.close_subprocess_debugger(self.rpcclt)
# kill subprocess, spawn a new one, accept connection
self.rpcclt.close()
self.spawn_subprocess()
self.rpcclt.accept()
# restart remote debugger
if debug:
gui = RemoteDebugger.restart_subprocess_debugger(self.rpcclt)
# reload remote debugger breakpoints for all PyShellEditWindows
debug.load_breakpoints()
active_seq = None
def poll_subprocess(self):
clt = self.rpcclt
if clt is None:
return
response = clt.pollresponse(self.active_seq)
self.tkconsole.text.after(50, self.poll_subprocess)
if response:
self.tkconsole.resetoutput()
self.active_seq = None
how, what = response
file = self.tkconsole.console
if how == "OK":
if what is not None:
print >>file, `what`
elif how == "EXCEPTION":
mod, name, args, tb = what
print >>file, 'Traceback (most recent call last):'
while tb and tb[0][0] in ("run.py", "rpc.py"):
del tb[0]
while tb and tb[-1][0] in ("run.py", "rpc.py"):
del tb[-1]
for i in range(len(tb)):
fn, ln, nm, line = tb[i]
if not line and fn.startswith("<pyshell#"):
line = linecache.getline(fn, ln)
tb[i] = fn, ln, nm, line
traceback.print_list(tb, file=file)
if mod and mod != "exceptions":
name = mod + "." + name
print >>file, name + ":", " ".join(map(str, args))
if self.tkconsole.getvar("<<toggle-jit-stack-viewer>>"):
self.remote_stack_viewer()
elif how == "ERROR":
print >>sys.__stderr__, "Oops:", how, what
print >>file, "Oops:", how, what
self.tkconsole.endexecuting()
def kill_subprocess(self):
clt = self.rpcclt
self.rpcclt = None
if clt is not None:
clt.close()
debugger = None
def setdebugger(self, debugger):
self.debugger = debugger
def getdebugger(self):
return self.debugger
def remote_stack_viewer(self):
import RemoteObjectBrowser
oid = self.rpcclt.remotecall("exec", "stackviewer", ("flist",), {})
if oid is None:
self.tkconsole.root.bell()
return
item = RemoteObjectBrowser.StubObjectTreeItem(self.rpcclt, oid)
from TreeWidget import ScrolledCanvas, TreeNode
top = Toplevel(self.tkconsole.root)
sc = ScrolledCanvas(top, bg="white", highlightthickness=0)
sc.frame.pack(expand=1, fill="both")
node = TreeNode(sc.canvas, None, item)
node.expand()
# XXX Should GC the remote tree when closing the window
gid = 0
def execsource(self, source):
"Like runsource() but assumes complete exec source"
filename = self.stuffsource(source)
self.execfile(filename, source)
def execfile(self, filename, source=None):
"Execute an existing file"
if source is None:
source = open(filename, "r").read()
try:
code = compile(source, filename, "exec")
except (OverflowError, SyntaxError):
self.tkconsole.resetoutput()
InteractiveInterpreter.showsyntaxerror(self, filename)
else:
self.runcode(code)
def runsource(self, source):
"Extend base class method: Stuff the source in the line cache first"
filename = self.stuffsource(source)
self.more = 0
self.save_warnings_filters = warnings.filters[:]
warnings.filterwarnings(action="error", category=SyntaxWarning)
if isinstance(source, types.UnicodeType):
import IOBinding
try:
source = source.encode(IOBinding.encoding)
except UnicodeError:
self.tkconsole.resetoutput()
self.write("Unsupported characters in input")
return
try:
return InteractiveInterpreter.runsource(self, source, filename)
finally:
if self.save_warnings_filters is not None:
warnings.filters[:] = self.save_warnings_filters
self.save_warnings_filters = None
def stuffsource(self, source):
"Stuff source in the filename cache"
filename = "<pyshell#%d>" % self.gid
self.gid = self.gid + 1
lines = source.split("\n")
linecache.cache[filename] = len(source)+1, 0, lines, filename
return filename
def showsyntaxerror(self, filename=None):
"""Extend base class method: Add Colorizing
Color the offending position instead of printing it and pointing at it
with a caret.
"""
text = self.tkconsole.text
stuff = self.unpackerror()
if not stuff:
self.tkconsole.resetoutput()
InteractiveInterpreter.showsyntaxerror(self, filename)
return
msg, lineno, offset, line = stuff
if lineno == 1:
pos = "iomark + %d chars" % (offset-1)
else:
pos = "iomark linestart + %d lines + %d chars" % (lineno-1,
offset-1)
text.tag_add("ERROR", pos)
text.see(pos)
char = text.get(pos)
if char and char in IDENTCHARS:
text.tag_add("ERROR", pos + " wordstart", pos)
self.tkconsole.resetoutput()
self.write("SyntaxError: %s\n" % str(msg))
def unpackerror(self):
type, value, tb = sys.exc_info()
ok = type is SyntaxError
if ok:
try:
msg, (dummy_filename, lineno, offset, line) = value
except:
ok = 0
if ok:
return msg, lineno, offset, line
else:
return None
def showtraceback(self):
"Extend base class method to reset output properly"
self.tkconsole.resetoutput()
self.checklinecache()
InteractiveInterpreter.showtraceback(self)
if self.tkconsole.getvar("<<toggle-jit-stack-viewer>>"):
self.tkconsole.open_stack_viewer()
def checklinecache(self):
c = linecache.cache
for key in c.keys():
if key[:1] + key[-1:] != "<>":
del c[key]
def display_executing_dialog(self):
tkMessageBox.showerror(
"Already executing",
"The Python Shell window is already executing a command; "
"please wait until it is finished.",
master=self.tkconsole.text)
def runcommand(self, code):
"Run the code without invoking the debugger"
# The code better not raise an exception!
if self.tkconsole.executing:
display_executing_dialog()
return 0
if self.rpcclt:
self.rpcclt.remotecall("exec", "runcode", (code,), {})
else:
exec code in self.locals
return 1
def runcode(self, code):
"Override base class method"
if self.tkconsole.executing:
display_executing_dialog()
return
self.checklinecache()
if self.save_warnings_filters is not None:
warnings.filters[:] = self.save_warnings_filters
self.save_warnings_filters = None
debugger = self.debugger
if not debugger and self.rpcclt is not None:
self.tkconsole.beginexecuting()
self.active_seq = self.rpcclt.asynccall("exec", "runcode",
(code,), {})
return
try:
self.tkconsole.beginexecuting()
try:
if debugger:
debugger.run(code, self.locals)
else:
exec code in self.locals
except SystemExit:
if tkMessageBox.askyesno(
"Exit?",
"Do you want to exit altogether?",
default="yes",
master=self.tkconsole.text):
raise
else:
self.showtraceback()
except:
self.showtraceback()
finally:
self.tkconsole.endexecuting()
def write(self, s):
"Override base class method"
self.tkconsole.console.write(s)
class PyShell(OutputWindow):
shell_title = "Python Shell"
# Override classes
ColorDelegator = ModifiedColorDelegator
UndoDelegator = ModifiedUndoDelegator
# Override menus: Run and Format not desired in shell; add Debug
menu_specs = [
("file", "_File"),
("edit", "_Edit"),
("debug", "_Debug"),
("settings", "_Settings"),
("windows", "_Windows"),
("help", "_Help"),
]
# New classes
from IdleHistory import History
def __init__(self, flist=None):
self.interp = ModifiedInterpreter(self)
if flist is None:
root = Tk()
fixwordbreaks(root)
root.withdraw()
flist = PyShellFileList(root)
#
OutputWindow.__init__(self, flist, None, None)
#
import __builtin__
__builtin__.quit = __builtin__.exit = "To exit, type Ctrl-D."
#
self.config(usetabs=1, indentwidth=8, context_use_ps1=1)
#
text = self.text
text.configure(wrap="char")
text.bind("<<newline-and-indent>>", self.enter_callback)
text.bind("<<plain-newline-and-indent>>", self.linefeed_callback)
text.bind("<<interrupt-execution>>", self.cancel_callback)
text.bind("<<beginning-of-line>>", self.home_callback)
text.bind("<<end-of-file>>", self.eof_callback)
text.bind("<<open-stack-viewer>>", self.open_stack_viewer)
text.bind("<<toggle-debugger>>", self.toggle_debugger)
text.bind("<<open-python-shell>>", self.flist.open_shell)
text.bind("<<toggle-jit-stack-viewer>>", self.toggle_jit_stack_viewer)
#
self.save_stdout = sys.stdout
self.save_stderr = sys.stderr
self.save_stdin = sys.stdin
self.stdout = PseudoFile(self, "stdout")
self.stderr = PseudoFile(self, "stderr")
self.console = PseudoFile(self, "console")
if not use_subprocess:
sys.stdout = self.stdout
sys.stderr = self.stderr
sys.stdin = self
#
self.history = self.History(self.text)
#
if use_subprocess:
self.interp.start_subprocess()
reading = 0
executing = 0
canceled = 0
endoffile = 0
def toggle_debugger(self, event=None):
if self.executing:
tkMessageBox.showerror("Don't debug now",
"You can only toggle the debugger when idle",
master=self.text)
self.set_debugger_indicator()
return "break"
else:
db = self.interp.getdebugger()
if db:
self.close_debugger()
else:
self.open_debugger()
def set_debugger_indicator(self):
db = self.interp.getdebugger()
self.setvar("<<toggle-debugger>>", not not db)
def toggle_jit_stack_viewer( self, event=None):
pass # All we need is the variable
def close_debugger(self):
db = self.interp.getdebugger()
if db:
self.interp.setdebugger(None)
db.close()
if self.interp.rpcclt:
RemoteDebugger.close_remote_debugger(self.interp.rpcclt)
self.resetoutput()
self.console.write("[DEBUG OFF]\n")
sys.ps1 = ">>> "
self.showprompt()
self.set_debugger_indicator()
def open_debugger(self):
# XXX KBK 13Jun02 An RPC client always exists now? Open remote
# debugger and return...dike the rest of this fcn and combine
# with open_remote_debugger?
if self.interp.rpcclt:
return self.open_remote_debugger()
import Debugger
self.interp.setdebugger(Debugger.Debugger(self))
sys.ps1 = "[DEBUG ON]\n>>> "
self.showprompt()
self.set_debugger_indicator()
def open_remote_debugger(self):
gui = RemoteDebugger.start_remote_debugger(self.interp.rpcclt, self)
self.interp.setdebugger(gui)
# Load all PyShellEditorWindow breakpoints:
gui.load_breakpoints()
sys.ps1 = "[DEBUG ON]\n>>> "
self.showprompt()
self.set_debugger_indicator()
def beginexecuting(self):
"Helper for ModifiedInterpreter"
self.resetoutput()
self.executing = 1
##self._cancel_check = self.cancel_check
##sys.settrace(self._cancel_check)
def endexecuting(self):
"Helper for ModifiedInterpreter"
##sys.settrace(None)
##self._cancel_check = None
self.executing = 0
self.canceled = 0
self.showprompt()
def close(self):
"Extend EditorWindow.close()"
if self.executing:
# XXX Need to ask a question here
if not tkMessageBox.askokcancel(
"Kill?",
"The program is still running; do you want to kill it?",
default="ok",
master=self.text):
return "cancel"
self.canceled = 1
if self.reading:
self.top.quit()
return "cancel"
return EditorWindow.close(self)
def _close(self):
"Extend EditorWindow._close(), shut down debugger and execution server"
self.close_debugger()
self.interp.kill_subprocess()
# Restore std streams
sys.stdout = self.save_stdout
sys.stderr = self.save_stderr
sys.stdin = self.save_stdin
# Break cycles
self.interp = None
self.console = None
self.flist.pyshell = None
self.history = None
EditorWindow._close(self)
def ispythonsource(self, filename):
"Override EditorWindow method: never remove the colorizer"
return True
def short_title(self):
return self.shell_title
COPYRIGHT = \
'Type "copyright", "credits" or "license" for more information.'
def begin(self):
self.resetoutput()
self.write("Python %s on %s\n%s\nGRPC IDLE Fork %s\n" %
(sys.version, sys.platform, self.COPYRIGHT,
idlever.IDLE_VERSION))
try:
sys.ps1
except AttributeError:
sys.ps1 = ">>> "
self.showprompt()
import Tkinter
Tkinter._default_root = None
def interact(self):
self.begin()
self.top.mainloop()
def readline(self):
save = self.reading
try:
self.reading = 1
self.top.mainloop()
finally:
self.reading = save
line = self.text.get("iomark", "end-1c")
self.resetoutput()
if self.canceled:
self.canceled = 0
raise KeyboardInterrupt
if self.endoffile:
self.endoffile = 0
return ""
return line
def isatty(self):
return True
def cancel_callback(self, event):
try:
if self.text.compare("sel.first", "!=", "sel.last"):
return # Active selection -- always use default binding
except:
pass
if not (self.executing or self.reading):
self.resetoutput()
self.write("KeyboardInterrupt\n")
self.showprompt()
return "break"
self.endoffile = 0
if self.reading:
self.canceled = 1
self.top.quit()
elif (self.executing and self.interp.rpcclt and
self.interp.rpcpid and hasattr(os, "kill")):
try:
from signal import SIGINT
except ImportError:
SIGINT = 2
os.kill(self.interp.rpcpid, SIGINT)
else:
self.canceled = 1
return "break"
def eof_callback(self, event):
if self.executing and not self.reading:
return # Let the default binding (delete next char) take over
if not (self.text.compare("iomark", "==", "insert") and
self.text.compare("insert", "==", "end-1c")):
return # Let the default binding (delete next char) take over
if not self.executing:
self.resetoutput()
self.close()
else:
self.canceled = 0
self.endoffile = 1
self.top.quit()
return "break"
def home_callback(self, event):
if event.state != 0 and event.keysym == "Home":
return # <Modifier-Home>; fall back to class binding
if self.text.compare("iomark", "<=", "insert") and \
self.text.compare("insert linestart", "<=", "iomark"):
self.text.mark_set("insert", "iomark")
self.text.tag_remove("sel", "1.0", "end")
self.text.see("insert")
return "break"
def linefeed_callback(self, event):
# Insert a linefeed without entering anything (still autoindented)
if self.reading:
self.text.insert("insert", "\n")
self.text.see("insert")
else:
self.auto_indent(event)
return "break"
def enter_callback(self, event):
if self.executing and not self.reading:
return # Let the default binding (insert '\n') take over
# If some text is selected, recall the selection
# (but only if this before the I/O mark)
try:
sel = self.text.get("sel.first", "sel.last")
if sel:
if self.text.compare("sel.last", "<=", "iomark"):
self.recall(sel)
return "break"
except:
pass
# If we're strictly before the line containing iomark, recall
# the current line, less a leading prompt, less leading or
# trailing whitespace
if self.text.compare("insert", "<", "iomark linestart"):
# Check if there's a relevant stdin range -- if so, use it
prev = self.text.tag_prevrange("stdin", "insert")
if prev and self.text.compare("insert", "<", prev[1]):
self.recall(self.text.get(prev[0], prev[1]))
return "break"
next = self.text.tag_nextrange("stdin", "insert")
if next and self.text.compare("insert lineend", ">=", next[0]):
self.recall(self.text.get(next[0], next[1]))
return "break"
# No stdin mark -- just get the current line
self.recall(self.text.get("insert linestart", "insert lineend"))
return "break"
# If we're in the current input and there's only whitespace
# beyond the cursor, erase that whitespace first
s = self.text.get("insert", "end-1c")
if s and not s.strip():
self.text.delete("insert", "end-1c")
# If we're in the current input before its last line,
# insert a newline right at the insert point
if self.text.compare("insert", "<", "end-1c linestart"):
self.auto_indent(event)
return "break"
# We're in the last line; append a newline and submit it
self.text.mark_set("insert", "end-1c")
if self.reading:
self.text.insert("insert", "\n")
self.text.see("insert")
else:
self.auto_indent(event)
self.text.tag_add("stdin", "iomark", "end-1c")
self.text.update_idletasks()
if self.reading:
self.top.quit() # Break out of recursive mainloop() in raw_input()
else:
self.runit()
return "break"
def recall(self, s):
if self.history:
self.history.recall(s)
def runit(self):
line = self.text.get("iomark", "end-1c")
# Strip off last newline and surrounding whitespace.
# (To allow you to hit return twice to end a statement.)
i = len(line)
while i > 0 and line[i-1] in " \t":
i = i-1
if i > 0 and line[i-1] == "\n":
i = i-1
while i > 0 and line[i-1] in " \t":
i = i-1
line = line[:i]
more = self.interp.runsource(line)
def cancel_check(self, frame, what, args,
dooneevent=tkinter.dooneevent,
dontwait=tkinter.DONT_WAIT):
# Hack -- use the debugger hooks to be able to handle events
# and interrupt execution at any time.
# This slows execution down quite a bit, so you may want to
# disable this (by not calling settrace() in runcode() above)
# for full-bore (uninterruptable) speed.
# XXX This should become a user option.
if self.canceled:
return
dooneevent(dontwait)
if self.canceled:
self.canceled = 0
raise KeyboardInterrupt
return self._cancel_check
def open_stack_viewer(self, event=None):
if self.interp.rpcclt:
return self.interp.remote_stack_viewer()
try:
sys.last_traceback
except:
tkMessageBox.showerror("No stack trace",
"There is no stack trace yet.\n"
"(sys.last_traceback is not defined)",
master=self.text)
return
from StackViewer import StackBrowser
sv = StackBrowser(self.root, self.flist)
def showprompt(self):
self.resetoutput()
try:
s = str(sys.ps1)
except:
s = ""
self.console.write(s)
self.text.mark_set("insert", "end-1c")
self.set_line_and_column()
self.io.reset_undo()
def resetoutput(self):
source = self.text.get("iomark", "end-1c")
if self.history:
self.history.history_store(source)
if self.text.get("end-2c") != "\n":
self.text.insert("end-1c", "\n")
self.text.mark_set("iomark", "end-1c")
self.set_line_and_column()
sys.stdout.softspace = 0
def write(self, s, tags=()):
self.text.mark_gravity("iomark", "right")
OutputWindow.write(self, s, tags, "iomark")
self.text.mark_gravity("iomark", "left")
if self.canceled:
self.canceled = 0
raise KeyboardInterrupt
class PseudoFile:
def __init__(self, shell, tags):
self.shell = shell
self.tags = tags
self.softspace = 0
def write(self, s):
self.shell.write(s, self.tags)
def writelines(self, l):
map(self.write, l)
def flush(self):
pass
def isatty(self):
return True
usage_msg = """\
usage: idle.py [-c command] [-d] [-i] [-r script] [-s] [-t title] [arg] ...
idle file(s) (without options) edit the file(s)
-c cmd run the command in a shell
-d enable the debugger
-e edit mode; arguments are files to be edited
-i open an interactive shell
-i file(s) open a shell and also an editor window for each file
-r
-s run $IDLESTARTUP or $PYTHONSTARTUP before anything else
-t title set title of shell window
Remaining arguments are applied to the command (-c) or script (-r).
"""
def main():
cmd = None
edit = 0
debug = 0
script = None
startup = 0
try:
opts, args = getopt.getopt(sys.argv[1:], "c:deir:st:")
except getopt.error, msg:
sys.stderr.write("Error: %s\n" % str(msg))
sys.stderr.write(usage_msg)
sys.exit(2)
for o, a in opts:
if o == '-c':
cmd = a
if o == '-d':
debug = 1
if o == '-e':
edit = 1
if o == '-r':
script = a
if o == '-s':
startup = 1
if o == '-t':
PyShell.shell_title = a
if args and args[0] != "-": edit = 1
for i in range(len(sys.path)):
sys.path[i] = os.path.abspath(sys.path[i])
pathx = []
if edit:
for filename in args:
pathx.append(os.path.dirname(filename))
elif args and args[0] != "-":
pathx.append(os.path.dirname(args[0]))
else:
pathx.append(os.curdir)
for dir in pathx:
dir = os.path.abspath(dir)
if not dir in sys.path:
sys.path.insert(0, dir)
global flist, root
root = Tk(className="Idle")
fixwordbreaks(root)
root.withdraw()
flist = PyShellFileList(root)
if edit:
for filename in args:
flist.open(filename)
if not args:
flist.new()
else:
if cmd:
sys.argv = ["-c"] + args
else:
sys.argv = args or [""]
shell = PyShell(flist)
interp = shell.interp
flist.pyshell = shell
if startup:
filename = os.environ.get("IDLESTARTUP") or \
os.environ.get("PYTHONSTARTUP")
if filename and os.path.isfile(filename):
interp.execfile(filename)
if debug:
shell.open_debugger()
if cmd:
interp.execsource(cmd)
elif script:
if os.path.isfile(script):
interp.execfile(script)
else:
print "No script file: ", script
shell.begin()
root.mainloop()
root.destroy()
def display_port_binding_error():
print """\
IDLE cannot run.
IDLE needs to use a specific TCP/IP port (8833) in order to execute and
debug programs. IDLE is unable to bind to this port, and so cannot
start. Here are some possible causes of this problem:
1. TCP/IP networking is not installed or not working on this computer
2. Another program is running that uses this port
3. Personal firewall software is preventing IDLE from using this port
IDLE makes and accepts connections only with this computer, and does not
communicate over the internet in any way. Its use of port 8833 should not
be a security risk on a single-user machine.
"""
if __name__ == "__main__":
main()
Reference in New Issue View Git Blame Copy Permalink