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1 # Copyright 2014 The Chromium Authors. All rights reserved. | 1 # Copyright 2014 The Chromium Authors. All rights reserved. |
2 # Use of this source code is governed by a BSD-style license that can be | 2 # Use of this source code is governed by a BSD-style license that can be |
3 # found in the LICENSE file. | 3 # found in the LICENSE file. |
4 | 4 |
5 """ | 5 """ |
6 Promise used by the python bindings. | 6 Promise used by the python bindings. |
7 | 7 |
8 The API is following the ECMAScript 6 API for promises. | 8 The API is following the ECMAScript 6 API for promises. |
9 """ | 9 """ |
10 | 10 |
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187 try: | 187 try: |
188 if action: | 188 if action: |
189 resolve(action(x)) | 189 resolve(action(x)) |
190 else: | 190 else: |
191 resolve(x) | 191 resolve(x) |
192 except Exception as e: | 192 except Exception as e: |
193 # Adding traceback similarly to python 3.0 (pep-3134) | 193 # Adding traceback similarly to python 3.0 (pep-3134) |
194 e.__traceback__ = sys.exc_info()[2] | 194 e.__traceback__ = sys.exc_info()[2] |
195 reject(e) | 195 reject(e) |
196 return _Run | 196 return _Run |
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