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1 | """ Debug a script (like %run -d) in IPython process, Using WinPdb |
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1 | """ Debug a script (like %run -d) in IPython process, Using WinPdb | |
2 |
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2 | |||
3 | Usage: |
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3 | Usage: | |
4 |
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4 | |||
5 | %wdb test.py |
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5 | %wdb test.py | |
6 | run test.py, with a winpdb breakpoint at start of the file |
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6 | run test.py, with a winpdb breakpoint at start of the file | |
7 |
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7 | |||
8 | %wdb pass |
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8 | %wdb pass | |
9 | Change the password (e.g. if you have forgotten the old one) |
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9 | Change the password (e.g. if you have forgotten the old one) | |
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10 | ||||
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11 | ||||
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12 | Notes | |||
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13 | ----- | |||
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14 | ||||
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15 | **WARNING**: As of March 2009 (IPython 0.10), WinPdb has a known bug, which | |||
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16 | causes PyTables to become impossible to import if winpdb is loaded. Therefore, | |||
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17 | if you need PyTables, do *not* use this extension. | |||
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18 | ||||
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19 | For more details: https://bugs.launchpad.net/ipython/+bug/249036 | |||
10 | """ |
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20 | """ | |
11 |
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21 | |||
12 | import os |
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22 | import os | |
13 |
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23 | |||
14 | import IPython.ipapi |
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24 | import IPython.ipapi | |
15 | import rpdb2 |
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25 | import rpdb2 | |
16 |
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26 | |||
17 | ip = IPython.ipapi.get() |
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27 | ip = IPython.ipapi.get() | |
18 |
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28 | |||
19 | rpdb_started = False |
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29 | rpdb_started = False | |
20 |
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30 | |||
21 | def wdb_f(self, arg): |
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31 | def wdb_f(self, arg): | |
22 | """ Debug a script (like %run -d) in IPython process, Using WinPdb |
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32 | """ Debug a script (like %run -d) in IPython process, Using WinPdb | |
23 |
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33 | |||
24 | Usage: |
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34 | Usage: | |
25 |
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35 | |||
26 | %wdb test.py |
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36 | %wdb test.py | |
27 | run test.py, with a winpdb breakpoint at start of the file |
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37 | run test.py, with a winpdb breakpoint at start of the file | |
28 |
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38 | |||
29 | %wdb pass |
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39 | %wdb pass | |
30 | Change the password (e.g. if you have forgotten the old one) |
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40 | Change the password (e.g. if you have forgotten the old one) | |
31 |
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41 | |||
32 | Note that after the script has been run, you need to do "Go" (f5) |
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42 | Note that after the script has been run, you need to do "Go" (f5) | |
33 | in WinPdb to resume normal IPython operation. |
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43 | in WinPdb to resume normal IPython operation. | |
34 | """ |
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44 | """ | |
35 |
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45 | |||
36 | global rpdb_started |
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46 | global rpdb_started | |
37 | if not arg.strip(): |
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47 | if not arg.strip(): | |
38 | print __doc__ |
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48 | print __doc__ | |
39 | return |
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49 | return | |
40 |
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50 | |||
41 | if arg.strip() == 'pass': |
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51 | if arg.strip() == 'pass': | |
42 | passwd = raw_input('Enter new winpdb session password: ') |
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52 | passwd = raw_input('Enter new winpdb session password: ') | |
43 | ip.db['winpdb_pass'] = passwd |
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53 | ip.db['winpdb_pass'] = passwd | |
44 | print "Winpdb password changed" |
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54 | print "Winpdb password changed" | |
45 | if rpdb_started: |
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55 | if rpdb_started: | |
46 | print "You need to restart IPython to use the new password" |
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56 | print "You need to restart IPython to use the new password" | |
47 | return |
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57 | return | |
48 |
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58 | |||
49 | path = os.path.abspath(arg) |
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59 | path = os.path.abspath(arg) | |
50 | if not os.path.isfile(path): |
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60 | if not os.path.isfile(path): | |
51 | raise IPython.ipapi.UsageError("%%wdb: file %s does not exist" % path) |
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61 | raise IPython.ipapi.UsageError("%%wdb: file %s does not exist" % path) | |
52 | if not rpdb_started: |
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62 | if not rpdb_started: | |
53 | passwd = ip.db.get('winpdb_pass', None) |
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63 | passwd = ip.db.get('winpdb_pass', None) | |
54 | if passwd is None: |
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64 | if passwd is None: | |
55 | import textwrap |
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65 | import textwrap | |
56 | print textwrap.dedent("""\ |
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66 | print textwrap.dedent("""\ | |
57 | Winpdb sessions need a password that you use for attaching the external |
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67 | Winpdb sessions need a password that you use for attaching the external | |
58 | winpdb session. IPython will remember this. You can change the password later |
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68 | winpdb session. IPython will remember this. You can change the password later | |
59 | by '%wpdb pass' |
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69 | by '%wpdb pass' | |
60 | """) |
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70 | """) | |
61 | passwd = raw_input('Enter new winpdb session password: ') |
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71 | passwd = raw_input('Enter new winpdb session password: ') | |
62 | ip.db['winpdb_pass'] = passwd |
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72 | ip.db['winpdb_pass'] = passwd | |
63 |
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73 | |||
64 | print "Starting rpdb2 in IPython process" |
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74 | print "Starting rpdb2 in IPython process" | |
65 | rpdb2.start_embedded_debugger(passwd, timeout = 0) |
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75 | rpdb2.start_embedded_debugger(passwd, timeout = 0) | |
66 | rpdb_started = True |
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76 | rpdb_started = True | |
67 |
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77 | |||
68 | rpdb2.set_temp_breakpoint(path) |
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78 | rpdb2.set_temp_breakpoint(path) | |
69 | print 'It is time to attach with WinPdb (launch WinPdb if needed, File -> Attach)' |
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79 | print 'It is time to attach with WinPdb (launch WinPdb if needed, File -> Attach)' | |
70 | ip.magic('%run ' + arg) |
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80 | ip.magic('%run ' + arg) | |
71 |
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81 | |||
72 |
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82 | |||
73 | ip.expose_magic('wdb', wdb_f) |
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83 | ip.expose_magic('wdb', wdb_f) |
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