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- Added async downloader for python 3.4 - Checks for existing files before spawning processes - Better handling of multiprocessing output - Added a quick version tool
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dist/porder-0.3.3-py2.py3-none-any.whl → dist/porder-0.3.4-py2.py3-none-any.whl
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -2,4 +2,4 @@ | |
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| __author__ = 'Samapriya Roy' | ||
| __email__ = '[email protected]' | ||
| __version__ = '0.3.3' | ||
| __version__ = '0.3.4' | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,113 @@ | ||
| import requests | ||
| import asyncio | ||
| import os | ||
| from concurrent.futures import ThreadPoolExecutor | ||
| from timeit import default_timer | ||
| from retrying import retry | ||
| from planet.api.auth import find_api_key | ||
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|
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| #Get Planet API and Authenticate SESSION | ||
| try: | ||
| PL_API_KEY = find_api_key() | ||
| except: | ||
| print('Failed to get Planet Key') | ||
| sys.exit() | ||
| SESSION = requests.Session() | ||
| SESSION.auth = (PL_API_KEY, '') | ||
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|
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| @retry( | ||
| wait_exponential_multiplier=1000, | ||
| wait_exponential_max=10000) | ||
| def check_for_redirects(url): | ||
| try: | ||
| r = SESSION.get(url, allow_redirects=False, timeout=0.5) | ||
| if 300 <= r.status_code < 400: | ||
| return r.headers['location'] | ||
| elif r.status_code==429: | ||
| raise Exception("rate limit error") | ||
| except requests.exceptions.Timeout: | ||
| return '[timeout]' | ||
| except requests.exceptions.ConnectionError: | ||
| return '[connection error]' | ||
| except requests.HTTPError as e: | ||
| print(r.status_code) | ||
| if r.status_code == 429: # Too many requests | ||
| raise Exception("rate limit error") | ||
| START_TIME = default_timer() | ||
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| def fetch(session, url): | ||
| urlcheck=url.split('|')[0] | ||
| fullpath=url.split('|')[1] | ||
| [head,tail]=os.path.split(fullpath) | ||
| #print("Starting download of %s" % fullpath.split('/')[-1]) | ||
| if not os.path.exists(head): | ||
| os.makedirs(head) | ||
| os.chdir(head) | ||
| if not os.path.isfile(fullpath): | ||
| r = session.get(urlcheck, stream = True) | ||
| with open(fullpath, "wb") as f: | ||
| for ch in r: | ||
| f.write(ch) | ||
| elapsed = default_timer() - START_TIME | ||
| time_completed_at = "{:5.2f}s".format(elapsed) | ||
| print("{0:100} {1:20}".format(tail, time_completed_at)) | ||
|
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| return tail | ||
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| urls=[] | ||
| def funct(url,final,ext): | ||
| if not os.path.exists(final): | ||
| os.makedirs(final) | ||
| os.chdir(final) | ||
| response=SESSION.get(url).json() | ||
| print("Polling with exponential backoff..") | ||
| while response['state']=='running' or response['state']=='starting': | ||
| bar = progressbar.ProgressBar() | ||
| for z in bar(range(60)): | ||
| time.sleep(1) | ||
| response=SESSION.get(url).json() | ||
| if response['state']=='success': | ||
| for items in response['_links']['results']: | ||
| url=(items['location']) | ||
| url_to_check = url if url.startswith('https') else "http://%s" % url | ||
| redirect_url = check_for_redirects(url_to_check) | ||
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| if redirect_url.startswith('https'): | ||
| local_path=os.path.join(final,str(os.path.split(items['name'])[-1])) | ||
| if not os.path.isfile(local_path) and ext is None: | ||
| urls.append(str(redirect_url)+'|'+local_path) | ||
| if not os.path.isfile(local_path) and ext is not None: | ||
| if local_path.endswith(ext): | ||
| urls.append(str(redirect_url)+'|'+local_path) | ||
| else: | ||
| print('Order Failed with state: '+str(response['state'])) | ||
| print('Processing a url list with '+str(len(urls))+' items') | ||
| print('\n') | ||
| return urls | ||
|
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| async def get_data_asynchronous(url,final,ext): | ||
| urllist=funct(url=url,final=final,ext=ext) | ||
| print("{0:100} {1:20}".format("File", "Completed at")) | ||
| with ThreadPoolExecutor(max_workers=10) as executor: | ||
| with requests.Session() as session: | ||
| # Set any session parameters here before calling `fetch` | ||
| loop = asyncio.get_event_loop() | ||
| START_TIME = default_timer() | ||
| tasks = [ | ||
| loop.run_in_executor( | ||
| executor, | ||
| fetch, | ||
| *(session, url) # Allows us to pass in multiple arguments to `fetch` | ||
| ) | ||
| for url in urllist | ||
| ] | ||
| for response in await asyncio.gather(*tasks): | ||
| pass | ||
|
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| def downloader(url,final,ext): | ||
| loop = asyncio.get_event_loop() | ||
| future = asyncio.ensure_future(get_data_asynchronous(url,final,ext)) | ||
| loop.run_until_complete(future) | ||
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| #downloader(url='https://api.planet.com/compute/ops/orders/v2/bbccc868-bada-4a4c-8c1d-9d8ef81c1d75',final=r'C:\planet_demo\mp2',ext=None) |
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