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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 | ||
ab73e885 | 13 | # GNU Emacs is free software: you can redistribute it and/or modify |
5d618512 | 14 | # it under the terms of the GNU General Public License as published by |
ab73e885 GM |
15 | # the Free Software Foundation, either version 3 of the License, or |
16 | # (at your option) any later version. | |
5d618512 GM |
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 | |
ab73e885 | 24 | # along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
5d618512 GM |
25 | |
26 | import os, sys, traceback, inspect, __main__ | |
27 | ||
28 | try: | |
29 | set | |
30 | except: | |
31 | from sets import Set as set | |
32 | ||
33 | __all__ = ["eexecfile", "eargs", "complete", "ehelp", "eimport", "modpath"] | |
34 | ||
35 | def format_exception (filename, should_remove_self): | |
36 | type, value, tb = sys.exc_info () | |
37 | sys.last_type = type | |
38 | sys.last_value = value | |
39 | sys.last_traceback = tb | |
40 | if type is SyntaxError: | |
41 | try: # parse the error message | |
42 | msg, (dummy_filename, lineno, offset, line) = value | |
43 | except: | |
44 | pass # Not the format we expect; leave it alone | |
45 | else: | |
46 | # Stuff in the right filename | |
47 | value = SyntaxError(msg, (filename, lineno, offset, line)) | |
48 | sys.last_value = value | |
49 | res = traceback.format_exception_only (type, value) | |
50 | # There are some compilation errors which do not provide traceback so we | |
51 | # should not massage it. | |
52 | if should_remove_self: | |
53 | tblist = traceback.extract_tb (tb) | |
54 | del tblist[:1] | |
55 | res = traceback.format_list (tblist) | |
56 | if res: | |
57 | res.insert(0, "Traceback (most recent call last):\n") | |
58 | res[len(res):] = traceback.format_exception_only (type, value) | |
59 | # traceback.print_exception(type, value, tb) | |
60 | for line in res: print(line, end=' ') | |
61 | ||
62 | def eexecfile (file): | |
63 | """Execute FILE and then remove it. | |
64 | Execute the file within the __main__ namespace. | |
65 | If we get an exception, print a traceback with the top frame | |
66 | (ourselves) excluded.""" | |
67 | # We cannot use real execfile since it has a bug where the file stays | |
68 | # locked forever (under w32) if SyntaxError occurs. | |
69 | # --- code based on code.py and PyShell.py. | |
70 | try: | |
71 | try: | |
72 | source = open (file, "r").read() | |
73 | code = compile (source, file, "exec") | |
74 | # Other exceptions (shouldn't be any...) will (correctly) fall | |
75 | # through to "final". | |
76 | except (OverflowError, SyntaxError, ValueError): | |
77 | # FIXME: When can compile() raise anything else than | |
78 | # SyntaxError ???? | |
79 | format_exception (file, False) | |
80 | return | |
81 | try: | |
82 | exec(code, __main__.__dict__) | |
83 | except: | |
84 | format_exception (file, True) | |
85 | finally: | |
86 | os.remove (file) | |
87 | ||
88 | def eargs (name, imports): | |
89 | "Get arglist of NAME for Eldoc &c." | |
90 | try: | |
91 | if imports: exec(imports) | |
92 | parts = name.split ('.') | |
93 | if len (parts) > 1: | |
94 | exec('import ' + parts[0]) # might fail | |
95 | func = eval (name) | |
96 | if inspect.isbuiltin (func) or type(func) is type: | |
97 | doc = func.__doc__ | |
98 | if doc.find (' ->') != -1: | |
99 | print('_emacs_out', doc.split (' ->')[0]) | |
100 | else: | |
101 | print('_emacs_out', doc.split ('\n')[0]) | |
102 | return | |
103 | if inspect.ismethod (func): | |
104 | func = func.im_func | |
105 | if not inspect.isfunction (func): | |
106 | print('_emacs_out ') | |
107 | return | |
108 | (args, varargs, varkw, defaults) = inspect.getargspec (func) | |
109 | # No space between name and arglist for consistency with builtins. | |
110 | print('_emacs_out', \ | |
111 | func.__name__ + inspect.formatargspec (args, varargs, varkw, | |
112 | defaults)) | |
113 | except: | |
114 | print("_emacs_out ") | |
115 | ||
116 | def all_names (object): | |
117 | """Return (an approximation to) a list of all possible attribute | |
118 | names reachable via the attributes of OBJECT, i.e. roughly the | |
119 | leaves of the dictionary tree under it.""" | |
120 | ||
121 | def do_object (object, names): | |
122 | if inspect.ismodule (object): | |
123 | do_module (object, names) | |
124 | elif inspect.isclass (object): | |
125 | do_class (object, names) | |
126 | # Might have an object without its class in scope. | |
127 | elif hasattr (object, '__class__'): | |
128 | names.add ('__class__') | |
129 | do_class (object.__class__, names) | |
130 | # Probably not a good idea to try to enumerate arbitrary | |
131 | # dictionaries... | |
132 | return names | |
133 | ||
134 | def do_module (module, names): | |
135 | if hasattr (module, '__all__'): # limited export list | |
136 | names.update(module.__all__) | |
137 | for i in module.__all__: | |
138 | do_object (getattr (module, i), names) | |
139 | else: # use all names | |
140 | names.update(dir (module)) | |
141 | for i in dir (module): | |
142 | do_object (getattr (module, i), names) | |
143 | return names | |
144 | ||
145 | def do_class (object, names): | |
146 | ns = dir (object) | |
147 | names.update(ns) | |
148 | if hasattr (object, '__bases__'): # superclasses | |
149 | for i in object.__bases__: do_object (i, names) | |
150 | return names | |
151 | ||
152 | return do_object (object, set([])) | |
153 | ||
154 | def complete (name, imports): | |
155 | """Complete TEXT in NAMESPACE and print a Lisp list of completions. | |
156 | Exec IMPORTS first.""" | |
157 | import __main__, keyword | |
158 | ||
159 | def class_members(object): | |
160 | names = dir (object) | |
161 | if hasattr (object, '__bases__'): | |
162 | for super in object.__bases__: | |
163 | names = class_members (super) | |
164 | return names | |
165 | ||
166 | names = set([]) | |
167 | base = None | |
168 | try: | |
169 | dict = __main__.__dict__.copy() | |
170 | if imports: exec(imports, dict) | |
171 | l = len (name) | |
172 | if not "." in name: | |
173 | for src in [dir (__builtins__), keyword.kwlist, list(dict.keys())]: | |
174 | for elt in src: | |
175 | if elt[:l] == name: names.add(elt) | |
176 | else: | |
177 | base = name[:name.rfind ('.')] | |
178 | name = name[name.rfind('.')+1:] | |
179 | try: | |
180 | object = eval (base, dict) | |
181 | names = set(dir (object)) | |
182 | if hasattr (object, '__class__'): | |
183 | names.add('__class__') | |
184 | names.update(class_members (object)) | |
185 | except: names = all_names (dict) | |
186 | except: | |
187 | print(sys.exc_info()) | |
188 | names = [] | |
189 | ||
190 | l = len(name) | |
191 | print('_emacs_out (', end=' ') | |
192 | for n in names: | |
193 | if name == n[:l]: | |
194 | if base: print('"%s.%s"' % (base, n), end=' ') | |
195 | else: print('"%s"' % n, end=' ') | |
196 | print(')') | |
197 | ||
198 | def ehelp (name, imports): | |
199 | """Get help on string NAME. | |
200 | First try to eval name for, e.g. user definitions where we need | |
201 | the object. Otherwise try the string form.""" | |
202 | locls = {} | |
203 | if imports: | |
204 | try: exec(imports, locls) | |
205 | except: pass | |
206 | try: help (eval (name, globals(), locls)) | |
207 | except: help (name) | |
208 | ||
209 | def eimport (mod, dir): | |
210 | """Import module MOD with directory DIR at the head of the search path. | |
211 | NB doesn't load from DIR if MOD shadows a system module.""" | |
212 | from __main__ import __dict__ | |
213 | ||
214 | path0 = sys.path[0] | |
215 | sys.path[0] = dir | |
216 | try: | |
217 | try: | |
218 | if mod in __dict__ and inspect.ismodule (__dict__[mod]): | |
219 | reload (__dict__[mod]) | |
220 | else: | |
221 | __dict__[mod] = __import__ (mod) | |
222 | except: | |
223 | (type, value, tb) = sys.exc_info () | |
224 | print("Traceback (most recent call last):") | |
225 | traceback.print_exception (type, value, tb.tb_next) | |
226 | finally: | |
227 | sys.path[0] = path0 | |
228 | ||
229 | def modpath (module): | |
230 | """Return the source file for the given MODULE (or None). | |
231 | Assumes that MODULE.py and MODULE.pyc are in the same directory.""" | |
232 | try: | |
233 | path = __import__ (module).__file__ | |
234 | if path[-4:] == '.pyc' and os.path.exists (path[0:-1]): | |
235 | path = path[:-1] | |
236 | print("_emacs_out", path) | |
237 | except: | |
238 | print("_emacs_out ()") | |
239 | ||
240 | # print '_emacs_ok' # ready for input and can call continuation | |
241 | ||
7a12ad59 | 242 | # arch-tag: 37bfed38-5f4a-4027-a2bf-d5f41819dd89 |