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5d618512 GM |
1 | """ |
2 | Warning: This file is automatically generated from emacs2.py with the | |
3 | 2to3 script. Do not hand edit. | |
4 | """ | |
5 | ||
6 | """Definitions used by commands sent to inferior Python in python.el.""" | |
7 | ||
dcb8ac09 | 8 | # Copyright (C) 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
5d618512 GM |
9 | # Author: Dave Love <fx@gnu.org> |
10 | ||
11 | # This file is part of GNU Emacs. | |
12 | ||
13 | # GNU Emacs is free software; you can redistribute it and/or modify | |
14 | # it under the terms of the GNU General Public License as published by | |
15 | # the Free Software Foundation; either version 3, or (at your option) | |
16 | # any later version. | |
17 | ||
18 | # GNU Emacs is distributed in the hope that it will be useful, | |
19 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | # GNU General Public License for more details. | |
22 | ||
23 | # You should have received a copy of the GNU General Public License | |
24 | # along with GNU Emacs; see the file COPYING. If not, write to the | |
25 | # Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
26 | # Boston, MA 02110-1301, USA. | |
27 | ||
28 | import os, sys, traceback, inspect, __main__ | |
29 | ||
30 | try: | |
31 | set | |
32 | except: | |
33 | from sets import Set as set | |
34 | ||
35 | __all__ = ["eexecfile", "eargs", "complete", "ehelp", "eimport", "modpath"] | |
36 | ||
37 | def format_exception (filename, should_remove_self): | |
38 | type, value, tb = sys.exc_info () | |
39 | sys.last_type = type | |
40 | sys.last_value = value | |
41 | sys.last_traceback = tb | |
42 | if type is SyntaxError: | |
43 | try: # parse the error message | |
44 | msg, (dummy_filename, lineno, offset, line) = value | |
45 | except: | |
46 | pass # Not the format we expect; leave it alone | |
47 | else: | |
48 | # Stuff in the right filename | |
49 | value = SyntaxError(msg, (filename, lineno, offset, line)) | |
50 | sys.last_value = value | |
51 | res = traceback.format_exception_only (type, value) | |
52 | # There are some compilation errors which do not provide traceback so we | |
53 | # should not massage it. | |
54 | if should_remove_self: | |
55 | tblist = traceback.extract_tb (tb) | |
56 | del tblist[:1] | |
57 | res = traceback.format_list (tblist) | |
58 | if res: | |
59 | res.insert(0, "Traceback (most recent call last):\n") | |
60 | res[len(res):] = traceback.format_exception_only (type, value) | |
61 | # traceback.print_exception(type, value, tb) | |
62 | for line in res: print(line, end=' ') | |
63 | ||
64 | def eexecfile (file): | |
65 | """Execute FILE and then remove it. | |
66 | Execute the file within the __main__ namespace. | |
67 | If we get an exception, print a traceback with the top frame | |
68 | (ourselves) excluded.""" | |
69 | # We cannot use real execfile since it has a bug where the file stays | |
70 | # locked forever (under w32) if SyntaxError occurs. | |
71 | # --- code based on code.py and PyShell.py. | |
72 | try: | |
73 | try: | |
74 | source = open (file, "r").read() | |
75 | code = compile (source, file, "exec") | |
76 | # Other exceptions (shouldn't be any...) will (correctly) fall | |
77 | # through to "final". | |
78 | except (OverflowError, SyntaxError, ValueError): | |
79 | # FIXME: When can compile() raise anything else than | |
80 | # SyntaxError ???? | |
81 | format_exception (file, False) | |
82 | return | |
83 | try: | |
84 | exec(code, __main__.__dict__) | |
85 | except: | |
86 | format_exception (file, True) | |
87 | finally: | |
88 | os.remove (file) | |
89 | ||
90 | def eargs (name, imports): | |
91 | "Get arglist of NAME for Eldoc &c." | |
92 | try: | |
93 | if imports: exec(imports) | |
94 | parts = name.split ('.') | |
95 | if len (parts) > 1: | |
96 | exec('import ' + parts[0]) # might fail | |
97 | func = eval (name) | |
98 | if inspect.isbuiltin (func) or type(func) is type: | |
99 | doc = func.__doc__ | |
100 | if doc.find (' ->') != -1: | |
101 | print('_emacs_out', doc.split (' ->')[0]) | |
102 | else: | |
103 | print('_emacs_out', doc.split ('\n')[0]) | |
104 | return | |
105 | if inspect.ismethod (func): | |
106 | func = func.im_func | |
107 | if not inspect.isfunction (func): | |
108 | print('_emacs_out ') | |
109 | return | |
110 | (args, varargs, varkw, defaults) = inspect.getargspec (func) | |
111 | # No space between name and arglist for consistency with builtins. | |
112 | print('_emacs_out', \ | |
113 | func.__name__ + inspect.formatargspec (args, varargs, varkw, | |
114 | defaults)) | |
115 | except: | |
116 | print("_emacs_out ") | |
117 | ||
118 | def all_names (object): | |
119 | """Return (an approximation to) a list of all possible attribute | |
120 | names reachable via the attributes of OBJECT, i.e. roughly the | |
121 | leaves of the dictionary tree under it.""" | |
122 | ||
123 | def do_object (object, names): | |
124 | if inspect.ismodule (object): | |
125 | do_module (object, names) | |
126 | elif inspect.isclass (object): | |
127 | do_class (object, names) | |
128 | # Might have an object without its class in scope. | |
129 | elif hasattr (object, '__class__'): | |
130 | names.add ('__class__') | |
131 | do_class (object.__class__, names) | |
132 | # Probably not a good idea to try to enumerate arbitrary | |
133 | # dictionaries... | |
134 | return names | |
135 | ||
136 | def do_module (module, names): | |
137 | if hasattr (module, '__all__'): # limited export list | |
138 | names.update(module.__all__) | |
139 | for i in module.__all__: | |
140 | do_object (getattr (module, i), names) | |
141 | else: # use all names | |
142 | names.update(dir (module)) | |
143 | for i in dir (module): | |
144 | do_object (getattr (module, i), names) | |
145 | return names | |
146 | ||
147 | def do_class (object, names): | |
148 | ns = dir (object) | |
149 | names.update(ns) | |
150 | if hasattr (object, '__bases__'): # superclasses | |
151 | for i in object.__bases__: do_object (i, names) | |
152 | return names | |
153 | ||
154 | return do_object (object, set([])) | |
155 | ||
156 | def complete (name, imports): | |
157 | """Complete TEXT in NAMESPACE and print a Lisp list of completions. | |
158 | Exec IMPORTS first.""" | |
159 | import __main__, keyword | |
160 | ||
161 | def class_members(object): | |
162 | names = dir (object) | |
163 | if hasattr (object, '__bases__'): | |
164 | for super in object.__bases__: | |
165 | names = class_members (super) | |
166 | return names | |
167 | ||
168 | names = set([]) | |
169 | base = None | |
170 | try: | |
171 | dict = __main__.__dict__.copy() | |
172 | if imports: exec(imports, dict) | |
173 | l = len (name) | |
174 | if not "." in name: | |
175 | for src in [dir (__builtins__), keyword.kwlist, list(dict.keys())]: | |
176 | for elt in src: | |
177 | if elt[:l] == name: names.add(elt) | |
178 | else: | |
179 | base = name[:name.rfind ('.')] | |
180 | name = name[name.rfind('.')+1:] | |
181 | try: | |
182 | object = eval (base, dict) | |
183 | names = set(dir (object)) | |
184 | if hasattr (object, '__class__'): | |
185 | names.add('__class__') | |
186 | names.update(class_members (object)) | |
187 | except: names = all_names (dict) | |
188 | except: | |
189 | print(sys.exc_info()) | |
190 | names = [] | |
191 | ||
192 | l = len(name) | |
193 | print('_emacs_out (', end=' ') | |
194 | for n in names: | |
195 | if name == n[:l]: | |
196 | if base: print('"%s.%s"' % (base, n), end=' ') | |
197 | else: print('"%s"' % n, end=' ') | |
198 | print(')') | |
199 | ||
200 | def ehelp (name, imports): | |
201 | """Get help on string NAME. | |
202 | First try to eval name for, e.g. user definitions where we need | |
203 | the object. Otherwise try the string form.""" | |
204 | locls = {} | |
205 | if imports: | |
206 | try: exec(imports, locls) | |
207 | except: pass | |
208 | try: help (eval (name, globals(), locls)) | |
209 | except: help (name) | |
210 | ||
211 | def eimport (mod, dir): | |
212 | """Import module MOD with directory DIR at the head of the search path. | |
213 | NB doesn't load from DIR if MOD shadows a system module.""" | |
214 | from __main__ import __dict__ | |
215 | ||
216 | path0 = sys.path[0] | |
217 | sys.path[0] = dir | |
218 | try: | |
219 | try: | |
220 | if mod in __dict__ and inspect.ismodule (__dict__[mod]): | |
221 | reload (__dict__[mod]) | |
222 | else: | |
223 | __dict__[mod] = __import__ (mod) | |
224 | except: | |
225 | (type, value, tb) = sys.exc_info () | |
226 | print("Traceback (most recent call last):") | |
227 | traceback.print_exception (type, value, tb.tb_next) | |
228 | finally: | |
229 | sys.path[0] = path0 | |
230 | ||
231 | def modpath (module): | |
232 | """Return the source file for the given MODULE (or None). | |
233 | Assumes that MODULE.py and MODULE.pyc are in the same directory.""" | |
234 | try: | |
235 | path = __import__ (module).__file__ | |
236 | if path[-4:] == '.pyc' and os.path.exists (path[0:-1]): | |
237 | path = path[:-1] | |
238 | print("_emacs_out", path) | |
239 | except: | |
240 | print("_emacs_out ()") | |
241 | ||
242 | # print '_emacs_ok' # ready for input and can call continuation | |
243 | ||
7a12ad59 | 244 | # arch-tag: 37bfed38-5f4a-4027-a2bf-d5f41819dd89 |