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Commit | Line | Data |
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19a03940 | 1 | import contextlib |
f8271158 | 2 | import errno |
3bc2ddcc | 3 | import os |
f8271158 | 4 | import random |
3bc2ddcc | 5 | import re |
3bc2ddcc JMF |
6 | import time |
7 | ||
f8271158 | 8 | from ..minicurses import ( |
9 | BreaklineStatusPrinter, | |
10 | MultilineLogger, | |
11 | MultilinePrinter, | |
12 | QuietMultilinePrinter, | |
13 | ) | |
3bc2ddcc | 14 | from ..utils import ( |
1d485a1a | 15 | NUMBER_RE, |
f8271158 | 16 | LockingUnsupportedError, |
19a03940 | 17 | Namespace, |
1a8cc837 | 18 | classproperty, |
1433734c | 19 | decodeArgument, |
3bc2ddcc | 20 | encodeFilename, |
9b9c5355 | 21 | error_to_compat_str, |
666c36d5 | 22 | float_or_none, |
3bc2ddcc | 23 | format_bytes, |
11233f2a | 24 | join_nonempty, |
205a0654 | 25 | sanitize_open, |
1433734c | 26 | shell_quote, |
e3ced9ed | 27 | timeconvert, |
aa7785f8 | 28 | timetuple_from_msec, |
11233f2a | 29 | try_call, |
3bc2ddcc JMF |
30 | ) |
31 | ||
32 | ||
86e5f3ed | 33 | class FileDownloader: |
3bc2ddcc JMF |
34 | """File Downloader class. |
35 | ||
36 | File downloader objects are the ones responsible of downloading the | |
37 | actual video file and writing it to disk. | |
38 | ||
39 | File downloaders accept a lot of parameters. In order not to saturate | |
40 | the object constructor with arguments, it receives a dictionary of | |
41 | options instead. | |
42 | ||
43 | Available options: | |
44 | ||
881e6a1f PH |
45 | verbose: Print additional info to stdout. |
46 | quiet: Do not print messages to stdout. | |
47 | ratelimit: Download speed limit, in bytes/sec. | |
c487cf00 | 48 | continuedl: Attempt to continue downloads if possible |
51d9739f | 49 | throttledratelimit: Assume the download is being throttled below this speed (bytes/sec) |
881e6a1f | 50 | retries: Number of times to retry for HTTP error 5xx |
205a0654 | 51 | file_access_retries: Number of times to retry on file access error |
881e6a1f PH |
52 | buffersize: Size of download buffer in bytes. |
53 | noresizebuffer: Do not automatically resize the download buffer. | |
54 | continuedl: Try to continue downloads if possible. | |
55 | noprogress: Do not print the progress bar. | |
881e6a1f PH |
56 | nopart: Do not use temporary .part files. |
57 | updatetime: Use the Last-modified header to set output file timestamps. | |
58 | test: Download only first bytes to test the downloader. | |
59 | min_filesize: Skip files smaller than this size | |
60 | max_filesize: Skip files larger than this size | |
61 | xattr_set_filesize: Set ytdl.filesize user xattribute with expected size. | |
34488702 | 62 | external_downloader_args: A dictionary of downloader keys (in lower case) |
63 | and a list of additional command-line arguments for the | |
64 | executable. Use 'default' as the name for arguments to be | |
65 | passed to all downloaders. For compatibility with youtube-dl, | |
66 | a single list of args can also be used | |
7d106a65 | 67 | hls_use_mpegts: Use the mpegts container for HLS videos. |
073cca3d | 68 | http_chunk_size: Size of a chunk for chunk-based HTTP downloading. May be |
b54d4a5c S |
69 | useful for bypassing bandwidth throttling imposed by |
70 | a webserver (experimental) | |
819e0531 | 71 | progress_template: See YoutubeDL.py |
23326151 | 72 | retry_sleep_functions: See YoutubeDL.py |
3bc2ddcc JMF |
73 | |
74 | Subclasses of this one must re-define the real_download method. | |
75 | """ | |
76 | ||
b686fc18 | 77 | _TEST_FILE_SIZE = 10241 |
3bc2ddcc JMF |
78 | params = None |
79 | ||
80 | def __init__(self, ydl, params): | |
81 | """Create a FileDownloader object with the given options.""" | |
19a03940 | 82 | self._set_ydl(ydl) |
3bc2ddcc JMF |
83 | self._progress_hooks = [] |
84 | self.params = params | |
819e0531 | 85 | self._prepare_multiline_status() |
5cda4eda | 86 | self.add_progress_hook(self.report_progress) |
3bc2ddcc | 87 | |
19a03940 | 88 | def _set_ydl(self, ydl): |
89 | self.ydl = ydl | |
90 | ||
91 | for func in ( | |
92 | 'deprecation_warning', | |
93 | 'report_error', | |
94 | 'report_file_already_downloaded', | |
95 | 'report_warning', | |
96 | 'to_console_title', | |
97 | 'to_stderr', | |
98 | 'trouble', | |
99 | 'write_debug', | |
100 | ): | |
1d485a1a | 101 | if not hasattr(self, func): |
102 | setattr(self, func, getattr(ydl, func)) | |
19a03940 | 103 | |
104 | def to_screen(self, *args, **kargs): | |
105 | self.ydl.to_screen(*args, quiet=self.params.get('quiet'), **kargs) | |
106 | ||
23326151 | 107 | __to_screen = to_screen |
108 | ||
1a8cc837 | 109 | @classproperty |
110 | def FD_NAME(cls): | |
998a3cae | 111 | return re.sub(r'(?<=[a-z])(?=[A-Z])', '_', cls.__name__[:-2]).lower() |
3a408f9d | 112 | |
3bc2ddcc JMF |
113 | @staticmethod |
114 | def format_seconds(seconds): | |
11233f2a | 115 | if seconds is None: |
116 | return ' Unknown' | |
aa7785f8 | 117 | time = timetuple_from_msec(seconds * 1000) |
118 | if time.hours > 99: | |
3bc2ddcc | 119 | return '--:--:--' |
aa7785f8 | 120 | if not time.hours: |
121 | return '%02d:%02d' % time[1:-1] | |
122 | return '%02d:%02d:%02d' % time[:-1] | |
3bc2ddcc | 123 | |
11233f2a | 124 | format_eta = format_seconds |
125 | ||
3bc2ddcc JMF |
126 | @staticmethod |
127 | def calc_percent(byte_counter, data_len): | |
128 | if data_len is None: | |
129 | return None | |
130 | return float(byte_counter) / float(data_len) * 100.0 | |
131 | ||
132 | @staticmethod | |
133 | def format_percent(percent): | |
11233f2a | 134 | return ' N/A%' if percent is None else f'{percent:>5.1f}%' |
3bc2ddcc JMF |
135 | |
136 | @staticmethod | |
137 | def calc_eta(start, now, total, current): | |
138 | if total is None: | |
139 | return None | |
c7667c2d S |
140 | if now is None: |
141 | now = time.time() | |
3bc2ddcc | 142 | dif = now - start |
5f6a1245 | 143 | if current == 0 or dif < 0.001: # One millisecond |
3bc2ddcc JMF |
144 | return None |
145 | rate = float(current) / dif | |
146 | return int((float(total) - float(current)) / rate) | |
147 | ||
3bc2ddcc JMF |
148 | @staticmethod |
149 | def calc_speed(start, now, bytes): | |
150 | dif = now - start | |
5f6a1245 | 151 | if bytes == 0 or dif < 0.001: # One millisecond |
3bc2ddcc JMF |
152 | return None |
153 | return float(bytes) / dif | |
154 | ||
155 | @staticmethod | |
156 | def format_speed(speed): | |
11233f2a | 157 | return ' Unknown B/s' if speed is None else f'{format_bytes(speed):>10s}/s' |
3bc2ddcc | 158 | |
617e58d8 S |
159 | @staticmethod |
160 | def format_retries(retries): | |
11233f2a | 161 | return 'inf' if retries == float('inf') else int(retries) |
617e58d8 | 162 | |
3bc2ddcc JMF |
163 | @staticmethod |
164 | def best_block_size(elapsed_time, bytes): | |
165 | new_min = max(bytes / 2.0, 1.0) | |
5f6a1245 | 166 | new_max = min(max(bytes * 2.0, 1.0), 4194304) # Do not surpass 4 MB |
3bc2ddcc JMF |
167 | if elapsed_time < 0.001: |
168 | return int(new_max) | |
169 | rate = bytes / elapsed_time | |
170 | if rate > new_max: | |
171 | return int(new_max) | |
172 | if rate < new_min: | |
173 | return int(new_min) | |
174 | return int(rate) | |
175 | ||
176 | @staticmethod | |
177 | def parse_bytes(bytestr): | |
178 | """Parse a string indicating a byte quantity into an integer.""" | |
1d485a1a | 179 | matchobj = re.match(rf'(?i)^({NUMBER_RE})([kMGTPEZY]?)$', bytestr) |
3bc2ddcc JMF |
180 | if matchobj is None: |
181 | return None | |
182 | number = float(matchobj.group(1)) | |
183 | multiplier = 1024.0 ** 'bkmgtpezy'.index(matchobj.group(2).lower()) | |
184 | return int(round(number * multiplier)) | |
185 | ||
c7667c2d | 186 | def slow_down(self, start_time, now, byte_counter): |
3bc2ddcc | 187 | """Sleep if the download speed is over the rate limit.""" |
d800609c | 188 | rate_limit = self.params.get('ratelimit') |
8a77e5e6 | 189 | if rate_limit is None or byte_counter == 0: |
3bc2ddcc | 190 | return |
c7667c2d S |
191 | if now is None: |
192 | now = time.time() | |
3bc2ddcc JMF |
193 | elapsed = now - start_time |
194 | if elapsed <= 0.0: | |
195 | return | |
196 | speed = float(byte_counter) / elapsed | |
8a77e5e6 | 197 | if speed > rate_limit: |
1a01639b S |
198 | sleep_time = float(byte_counter) / rate_limit - elapsed |
199 | if sleep_time > 0: | |
200 | time.sleep(sleep_time) | |
3bc2ddcc JMF |
201 | |
202 | def temp_name(self, filename): | |
203 | """Returns a temporary filename for the given filename.""" | |
b6b70730 | 204 | if self.params.get('nopart', False) or filename == '-' or \ |
3bc2ddcc JMF |
205 | (os.path.exists(encodeFilename(filename)) and not os.path.isfile(encodeFilename(filename))): |
206 | return filename | |
b6b70730 | 207 | return filename + '.part' |
3bc2ddcc JMF |
208 | |
209 | def undo_temp_name(self, filename): | |
b6b70730 PH |
210 | if filename.endswith('.part'): |
211 | return filename[:-len('.part')] | |
3bc2ddcc JMF |
212 | return filename |
213 | ||
ea0c2f21 RA |
214 | def ytdl_filename(self, filename): |
215 | return filename + '.ytdl' | |
216 | ||
45806d44 EH |
217 | def wrap_file_access(action, *, fatal=False): |
218 | def outer(func): | |
219 | def inner(self, *args, **kwargs): | |
220 | file_access_retries = self.params.get('file_access_retries', 0) | |
221 | retry = 0 | |
222 | while True: | |
223 | try: | |
224 | return func(self, *args, **kwargs) | |
86e5f3ed | 225 | except OSError as err: |
45806d44 EH |
226 | retry = retry + 1 |
227 | if retry > file_access_retries or err.errno not in (errno.EACCES, errno.EINVAL): | |
228 | if not fatal: | |
229 | self.report_error(f'unable to {action} file: {err}') | |
230 | return | |
231 | raise | |
232 | self.to_screen( | |
233 | f'[download] Unable to {action} file due to file access error. ' | |
234 | f'Retrying (attempt {retry} of {self.format_retries(file_access_retries)}) ...') | |
23326151 | 235 | if not self.sleep_retry('file_access', retry): |
236 | time.sleep(0.01) | |
45806d44 EH |
237 | return inner |
238 | return outer | |
239 | ||
240 | @wrap_file_access('open', fatal=True) | |
205a0654 | 241 | def sanitize_open(self, filename, open_mode): |
0edb3e33 | 242 | f, filename = sanitize_open(filename, open_mode) |
243 | if not getattr(f, 'locked', None): | |
244 | self.write_debug(f'{LockingUnsupportedError.msg}. Proceeding without locking', only_once=True) | |
245 | return f, filename | |
205a0654 | 246 | |
45806d44 EH |
247 | @wrap_file_access('remove') |
248 | def try_remove(self, filename): | |
249 | os.remove(filename) | |
250 | ||
251 | @wrap_file_access('rename') | |
3bc2ddcc | 252 | def try_rename(self, old_filename, new_filename): |
f775c831 | 253 | if old_filename == new_filename: |
254 | return | |
45806d44 | 255 | os.replace(old_filename, new_filename) |
3bc2ddcc JMF |
256 | |
257 | def try_utime(self, filename, last_modified_hdr): | |
258 | """Try to set the last-modified time of the given file.""" | |
259 | if last_modified_hdr is None: | |
260 | return | |
261 | if not os.path.isfile(encodeFilename(filename)): | |
262 | return | |
263 | timestr = last_modified_hdr | |
264 | if timestr is None: | |
265 | return | |
266 | filetime = timeconvert(timestr) | |
267 | if filetime is None: | |
268 | return filetime | |
269 | # Ignore obviously invalid dates | |
270 | if filetime == 0: | |
271 | return | |
19a03940 | 272 | with contextlib.suppress(Exception): |
3bc2ddcc | 273 | os.utime(filename, (time.time(), filetime)) |
3bc2ddcc JMF |
274 | return filetime |
275 | ||
276 | def report_destination(self, filename): | |
277 | """Report destination filename.""" | |
b6b70730 | 278 | self.to_screen('[download] Destination: ' + filename) |
3bc2ddcc | 279 | |
819e0531 | 280 | def _prepare_multiline_status(self, lines=1): |
281 | if self.params.get('noprogress'): | |
bd50a52b | 282 | self._multiline = QuietMultilinePrinter() |
819e0531 | 283 | elif self.ydl.params.get('logger'): |
284 | self._multiline = MultilineLogger(self.ydl.params['logger'], lines) | |
285 | elif self.params.get('progress_with_newline'): | |
8a7f6d7a | 286 | self._multiline = BreaklineStatusPrinter(self.ydl._out_files.out, lines) |
bd50a52b | 287 | else: |
8a7f6d7a | 288 | self._multiline = MultilinePrinter(self.ydl._out_files.out, lines, not self.params.get('quiet')) |
7578d77d | 289 | self._multiline.allow_colors = self._multiline._HAVE_FULLCAP and not self.params.get('no_color') |
bd50a52b THD |
290 | |
291 | def _finish_multiline_status(self): | |
819e0531 | 292 | self._multiline.end() |
293 | ||
19a03940 | 294 | ProgressStyles = Namespace( |
295 | downloaded_bytes='light blue', | |
296 | percent='light blue', | |
297 | eta='yellow', | |
298 | speed='green', | |
299 | elapsed='bold white', | |
300 | total_bytes='', | |
301 | total_bytes_estimate='', | |
302 | ) | |
7578d77d | 303 | |
304 | def _report_progress_status(self, s, default_template): | |
64fa820c | 305 | for name, style in self.ProgressStyles.items_: |
7578d77d | 306 | name = f'_{name}_str' |
307 | if name not in s: | |
308 | continue | |
309 | s[name] = self._format_progress(s[name], style) | |
310 | s['_default_template'] = default_template % s | |
311 | ||
819e0531 | 312 | progress_dict = s.copy() |
313 | progress_dict.pop('info_dict') | |
314 | progress_dict = {'info': s['info_dict'], 'progress': progress_dict} | |
315 | ||
316 | progress_template = self.params.get('progress_template', {}) | |
317 | self._multiline.print_at_line(self.ydl.evaluate_outtmpl( | |
318 | progress_template.get('download') or '[download] %(progress._default_template)s', | |
319 | progress_dict), s.get('progress_idx') or 0) | |
320 | self.to_console_title(self.ydl.evaluate_outtmpl( | |
321 | progress_template.get('download-title') or 'yt-dlp %(progress._default_template)s', | |
322 | progress_dict)) | |
3bc2ddcc | 323 | |
7578d77d | 324 | def _format_progress(self, *args, **kwargs): |
325 | return self.ydl._format_text( | |
326 | self._multiline.stream, self._multiline.allow_colors, *args, **kwargs) | |
327 | ||
5cda4eda | 328 | def report_progress(self, s): |
11233f2a | 329 | def with_fields(*tups, default=''): |
330 | for *fields, tmpl in tups: | |
331 | if all(s.get(f) is not None for f in fields): | |
332 | return tmpl | |
333 | return default | |
334 | ||
5cda4eda | 335 | if s['status'] == 'finished': |
819e0531 | 336 | if self.params.get('noprogress'): |
5cda4eda | 337 | self.to_screen('[download] Download completed') |
11233f2a | 338 | s.update({ |
339 | '_total_bytes_str': format_bytes(s.get('total_bytes')), | |
340 | '_elapsed_str': self.format_seconds(s.get('elapsed')), | |
341 | '_percent_str': self.format_percent(100), | |
342 | }) | |
343 | self._report_progress_status(s, join_nonempty( | |
344 | '100%%', | |
345 | with_fields(('total_bytes', 'of %(_total_bytes_str)s')), | |
346 | with_fields(('elapsed', 'in %(_elapsed_str)s')), | |
347 | delim=' ')) | |
5cda4eda PH |
348 | |
349 | if s['status'] != 'downloading': | |
350 | return | |
351 | ||
11233f2a | 352 | s.update({ |
353 | '_eta_str': self.format_eta(s.get('eta')), | |
354 | '_speed_str': self.format_speed(s.get('speed')), | |
355 | '_percent_str': self.format_percent(try_call( | |
356 | lambda: 100 * s['downloaded_bytes'] / s['total_bytes'], | |
357 | lambda: 100 * s['downloaded_bytes'] / s['total_bytes_estimate'], | |
358 | lambda: s['downloaded_bytes'] == 0 and 0)), | |
359 | '_total_bytes_str': format_bytes(s.get('total_bytes')), | |
360 | '_total_bytes_estimate_str': format_bytes(s.get('total_bytes_estimate')), | |
361 | '_downloaded_bytes_str': format_bytes(s.get('downloaded_bytes')), | |
362 | '_elapsed_str': self.format_seconds(s.get('elapsed')), | |
363 | }) | |
364 | ||
365 | msg_template = with_fields( | |
366 | ('total_bytes', '%(_percent_str)s of %(_total_bytes_str)s at %(_speed_str)s ETA %(_eta_str)s'), | |
367 | ('total_bytes_estimate', '%(_percent_str)s of ~%(_total_bytes_estimate_str)s at %(_speed_str)s ETA %(_eta_str)s'), | |
368 | ('downloaded_bytes', 'elapsed', '%(_downloaded_bytes_str)s at %(_speed_str)s (%(_elapsed_str)s)'), | |
369 | ('downloaded_bytes', '%(_downloaded_bytes_str)s at %(_speed_str)s'), | |
370 | default='%(_percent_str)s at %(_speed_str)s ETA %(_eta_str)s') | |
371 | ||
372 | msg_template += with_fields( | |
373 | ('fragment_index', 'fragment_count', ' (frag %(fragment_index)s/%(fragment_count)s)'), | |
374 | ('fragment_index', ' (frag %(fragment_index)s)')) | |
7578d77d | 375 | self._report_progress_status(s, msg_template) |
3bc2ddcc JMF |
376 | |
377 | def report_resuming_byte(self, resume_len): | |
378 | """Report attempt to resume at given byte.""" | |
b6b70730 | 379 | self.to_screen('[download] Resuming download at byte %s' % resume_len) |
3bc2ddcc | 380 | |
a3c3a1e1 | 381 | def report_retry(self, err, count, retries): |
3bc2ddcc | 382 | """Report retry in case of HTTP error 5xx""" |
23326151 | 383 | self.__to_screen( |
5ef7d9bd | 384 | '[download] Got server HTTP error: %s. Retrying (attempt %d of %s) ...' |
a3c3a1e1 | 385 | % (error_to_compat_str(err), count, self.format_retries(retries))) |
23326151 | 386 | self.sleep_retry('http', count) |
3bc2ddcc | 387 | |
3bc2ddcc JMF |
388 | def report_unable_to_resume(self): |
389 | """Report it was impossible to resume download.""" | |
b6b70730 | 390 | self.to_screen('[download] Unable to resume') |
3bc2ddcc | 391 | |
23326151 | 392 | def sleep_retry(self, retry_type, count): |
393 | sleep_func = self.params.get('retry_sleep_functions', {}).get(retry_type) | |
666c36d5 | 394 | delay = float_or_none(sleep_func(n=count - 1)) if sleep_func else None |
23326151 | 395 | if delay: |
666c36d5 | 396 | self.__to_screen(f'Sleeping {delay:.2f} seconds ...') |
23326151 | 397 | time.sleep(delay) |
398 | return sleep_func is not None | |
399 | ||
0a473f2f | 400 | @staticmethod |
401 | def supports_manifest(manifest): | |
402 | """ Whether the downloader can download the fragments from the manifest. | |
403 | Redefine in subclasses if needed. """ | |
404 | pass | |
405 | ||
9f448fcb | 406 | def download(self, filename, info_dict, subtitle=False): |
3bc2ddcc JMF |
407 | """Download to a filename using the info from info_dict |
408 | Return True on success and False otherwise | |
409 | """ | |
5f0d813d | 410 | |
4340deca | 411 | nooverwrites_and_exists = ( |
9cc1a313 | 412 | not self.params.get('overwrites', True) |
3089bc74 | 413 | and os.path.exists(encodeFilename(filename)) |
4340deca P |
414 | ) |
415 | ||
75a24854 RA |
416 | if not hasattr(filename, 'write'): |
417 | continuedl_and_exists = ( | |
3089bc74 S |
418 | self.params.get('continuedl', True) |
419 | and os.path.isfile(encodeFilename(filename)) | |
420 | and not self.params.get('nopart', False) | |
75a24854 RA |
421 | ) |
422 | ||
423 | # Check file already present | |
424 | if filename != '-' and (nooverwrites_and_exists or continuedl_and_exists): | |
425 | self.report_file_already_downloaded(filename) | |
426 | self._hook_progress({ | |
427 | 'filename': filename, | |
428 | 'status': 'finished', | |
429 | 'total_bytes': os.path.getsize(encodeFilename(filename)), | |
3ba7740d | 430 | }, info_dict) |
b69fd25c | 431 | self._finish_multiline_status() |
a9e7f546 | 432 | return True, False |
dabc1273 | 433 | |
19a03940 | 434 | if subtitle: |
435 | sleep_interval = self.params.get('sleep_interval_subtitles') or 0 | |
9f448fcb | 436 | else: |
19a03940 | 437 | min_sleep_interval = self.params.get('sleep_interval') or 0 |
438 | sleep_interval = random.uniform( | |
43cc91ad | 439 | min_sleep_interval, self.params.get('max_sleep_interval') or min_sleep_interval) |
19a03940 | 440 | if sleep_interval > 0: |
441 | self.to_screen(f'[download] Sleeping {sleep_interval:.2f} seconds ...') | |
442 | time.sleep(sleep_interval) | |
443 | ||
819e0531 | 444 | ret = self.real_download(filename, info_dict) |
445 | self._finish_multiline_status() | |
446 | return ret, True | |
3bc2ddcc JMF |
447 | |
448 | def real_download(self, filename, info_dict): | |
449 | """Real download process. Redefine in subclasses.""" | |
b6b70730 | 450 | raise NotImplementedError('This method must be implemented by subclasses') |
3bc2ddcc | 451 | |
3ba7740d | 452 | def _hook_progress(self, status, info_dict): |
453 | if not self._progress_hooks: | |
454 | return | |
03b4de72 | 455 | status['info_dict'] = info_dict |
f45e6c11 | 456 | # youtube-dl passes the same status object to all the hooks. |
457 | # Some third party scripts seems to be relying on this. | |
458 | # So keep this behavior if possible | |
3bc2ddcc | 459 | for ph in self._progress_hooks: |
f45e6c11 | 460 | ph(status) |
3bc2ddcc JMF |
461 | |
462 | def add_progress_hook(self, ph): | |
71b640cc PH |
463 | # See YoutubeDl.py (search for progress_hooks) for a description of |
464 | # this interface | |
3bc2ddcc | 465 | self._progress_hooks.append(ph) |
222516d9 | 466 | |
cd8a07a7 | 467 | def _debug_cmd(self, args, exe=None): |
222516d9 PH |
468 | if not self.params.get('verbose', False): |
469 | return | |
470 | ||
cd8a07a7 S |
471 | str_args = [decodeArgument(a) for a in args] |
472 | ||
222516d9 | 473 | if exe is None: |
cd8a07a7 | 474 | exe = os.path.basename(str_args[0]) |
222516d9 | 475 | |
86e5f3ed | 476 | self.write_debug(f'{exe} command line: {shell_quote(str_args)}') |