Closed AndyYan108 closed 2 years ago
Note: The program can run only 4 times in the for loop(like 1-5) and then the error comes out
# import requests import pandas as pd header = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.164 Safari/537.36'} screen = requests.get('https://finviz.com/screener.ashx?v=111&f=cap_microunder,exch_nasd', headers = header).text tables = pd.read_html(screen) tables = tables[-2] tables.columns = tables.iloc[0] tables = tables[1:] for i in range(1, 62): num = i * 20 + 1 screen = requests.get(f'https://finviz.com/screener.ashx?v=111&f=cap_microunder,exch_nasd&r={num}', headers = header).text tables1 = pd.read_html(screen) tables1 = tables1[-2] tables1.columns = tables1.iloc[0] tables1 = tables1[1:] tables = pd.concat([tables, tables1], ignore_index=True) print(tables) tables.to_csv('table.csv')
0 No. Ticker Company ... Price Change Volume 0 1 AACG ATA Creativity Global ... 3.26 5.81% 74743 1 2 AAME Atlantic American Corporation ... 4.05 -0.74% 13064 2 3 AAOI Applied Optoelectronics, Inc. ... 7.50 4.02% 300084 3 4 AATC Autoscope Technologies Corporation ... 6.68 5.67% 23572 4 5 ABEO Abeona Therapeutics Inc. ... 1.24 -0.80% 1644640 5 6 ABGI ABG Acquisition Corp. I ... 9.73 -0.10% 1102 6 7 ABIO ARCA biopharma, Inc. ... 3.02 1.34% 127806 7 8 ABUS Arbutus Biopharma Corporation ... 2.74 1.44% 557042 8 9 ACER Acer Therapeutics Inc. ... 2.40 1.69% 72867 9 10 ACET Adicet Bio, Inc. ... 7.46 -0.40% 60257 10 11 ACEV ACE Convergence Acquisition Corp. ... 9.86 0.00% 227069 11 12 ACHL Achilles Therapeutics plc ... 6.02 0.17% 3129 12 13 ACHV Achieve Life Sciences, Inc. ... 7.26 0.12% 125431 13 14 ACKIU Ackrell SPAC Partners I Co. ... 10.21 -0.51% 20429 14 15 ACNB ACNB Corporation ... 28.18 -0.04% 3847 15 16 ACOR Acorda Therapeutics, Inc. ... 3.89 -1.74% 314330 16 17 ACRX AcelRx Pharmaceuticals, Inc. ... 1.19 0.00% 491255 17 18 ACST Acasti Pharma Inc. ... 0.47 3.67% 3735616 18 19 ACTG Acacia Research Corporation ... 5.72 0.88% 96306 19 20 ACXP Acurx Pharmaceuticals, Inc. ... 5.19 1.21% 72454 20 21 ADES Advanced Emissions Solutions, Inc. ... 7.64 2.41% 94783 21 22 ADIL Adial Pharmaceuticals, Inc. ... 2.38 2.14% 114676 22 23 ADMA ADMA Biologics, Inc. ... 1.60 -3.03% 724842 23 24 ADMP Adamis Pharmaceuticals Corporation ... 1.03 -0.48% 770632 24 25 ADMS Adamas Pharmaceuticals, Inc. ... 4.86 1.25% 41785 25 26 ADOC Edoc Acquisition Corp. ... 10.05 -0.20% 101 26 27 ADTX Aditxt, Inc. ... 2.15 -0.46% 245755 27 28 ADVM Adverum Biotechnologies, Inc. ... 2.32 -0.22% 1007877 28 29 ADXN Addex Therapeutics Ltd ... 9.00 -5.76% 1218 29 30 ADXS Advaxis, Inc. ... 0.43 3.98% 1963730 30 31 AEAC Authentic Equity Acquisition Corp. ... 9.66 -0.21% 2 31 32 AEHL Antelope Enterprise Holdings Limited ... 2.93 4.08% 329894 32 33 AEHR Aehr Test Systems ... 5.90 5.73% 1501288 33 34 AEI Alset EHome International Inc. ... 2.17 -36.22% 10833029 34 35 AEMD Aethlon Medical, Inc. ... 5.31 9.98% 376869 35 36 AESE Allied Esports Entertainment Inc. ... 2.05 3.02% 150842 36 37 AEY ADDvantage Technologies Group, Inc. ... 2.23 0.00% 8484 37 38 AEYE AudioEye, Inc. ... 13.95 3.68% 34198 38 39 AEZS Aeterna Zentaris Inc. ... 0.77 1.25% 1025815 39 40 AFBI Affinity Bancshares, Inc. ... 13.24 0.00% 1592 [40 rows x 11 columns] 0 No. Ticker ... Change Volume 0 1 AACG ... 5.81% 74743 1 2 AAME ... -0.74% 13064 2 3 AAOI ... 4.02% 300084 3 4 AATC ... 5.67% 23572 4 5 ABEO ... -0.80% 1644640 5 6 ABGI ... -0.10% 1102 6 7 ABIO ... 1.34% 127806 7 8 ABUS ... 1.44% 557042 8 9 ACER ... 1.69% 72867 9 10 ACET ... -0.40% 60257 10 11 ACEV ... 0.00% 227069 11 12 ACHL ... 0.17% 3129 12 13 ACHV ... 0.12% 125431 13 14 ACKIU ... -0.51% 20429 14 15 ACNB ... -0.04% 3847 15 16 ACOR ... -1.74% 314330 16 17 ACRX ... 0.00% 491255 17 18 ACST ... 3.67% 3735616 18 19 ACTG ... 0.88% 96306 19 20 ACXP ... 1.21% 72454 20 21 ADES ... 2.41% 94783 21 22 ADIL ... 2.14% 114676 22 23 ADMA ... -3.03% 724842 23 24 ADMP ... -0.48% 770632 24 25 ADMS ... 1.25% 41785 25 26 ADOC ... -0.20% 101 26 27 ADTX ... -0.46% 245755 27 28 ADVM ... -0.22% 1007877 28 29 ADXN ... -5.76% 1218 29 30 ADXS ... 3.98% 1963730 30 31 AEAC ... -0.21% 2 31 32 AEHL ... 4.08% 329894 32 33 AEHR ... 5.73% 1501288 33 34 AEI ... -36.22% 10833029 34 35 AEMD ... 9.98% 376869 35 36 AESE ... 3.02% 150842 36 37 AEY ... 0.00% 8484 37 38 AEYE ... 3.68% 34198 38 39 AEZS ... 1.25% 1025815 39 40 AFBI ... 0.00% 1592 40 41 AFCG ... 0.52% 15971 41 42 AGFS ... 2.62% 52066 42 43 AGGR ... -0.10% 16350 43 44 AGMH ... -0.55% 69710 44 45 AGRI ... 0.34% 249721 45 46 AGRX ... 8.02% 502187 46 47 AGTC ... 0.00% 194981 47 48 AHAC ... -0.21% 28010 48 49 AHPI ... -6.10% 594069 49 50 AIH ... 11.89% 172789 50 51 AIHS ... 0.28% 798443 51 52 AIKI ... 1.85% 529251 52 53 AIRG ... 2.19% 13836 53 54 AIRT ... 2.38% 6816 54 55 AKIC ... 0.00% 0 55 56 AKTX ... 2.52% 69737 56 57 ALAC ... -0.09% 4935 57 58 ALCO ... -0.38% 15543 58 59 ALF ... -2.78% 900340 59 60 ALIM ... -0.69% 6687 [60 rows x 11 columns] 0 No. Ticker Company ... Price Change Volume 0 1 AACG ATA Creativity Global ... 3.26 5.81% 74743 1 2 AAME Atlantic American Corporation ... 4.05 -0.74% 13064 2 3 AAOI Applied Optoelectronics, Inc. ... 7.50 4.02% 300084 3 4 AATC Autoscope Technologies Corporation ... 6.68 5.67% 23572 4 5 ABEO Abeona Therapeutics Inc. ... 1.24 -0.80% 1644640 .. .. ... ... ... ... ... ... 75 76 ANPC AnPac Bio-Medical Science Co., Ltd. ... 3.80 0.80% 33758 76 77 ANTE AirNet Technology Inc. ... 2.36 4.42% 237799 77 78 ANY Sphere 3D Corp. ... 2.99 5.28% 2170342 78 79 APDN Applied DNA Sciences, Inc. ... 5.20 -1.70% 275280 79 80 APEN Apollo Endosurgery, Inc. ... 7.94 2.58% 8045 [80 rows x 11 columns] 0 No. Ticker Company ... Price Change Volume 0 1 AACG ATA Creativity Global ... 3.26 5.81% 74743 1 2 AAME Atlantic American Corporation ... 4.05 -0.74% 13064 2 3 AAOI Applied Optoelectronics, Inc. ... 7.50 4.02% 300084 3 4 AATC Autoscope Technologies Corporation ... 6.68 5.67% 23572 4 5 ABEO Abeona Therapeutics Inc. ... 1.24 -0.80% 1644640 .. ... ... ... ... ... ... ... 95 96 ARTL Artelo Biosciences, Inc. ... 1.02 -0.97% 2794669 96 97 ARTW Art's-Way Manufacturing Co., Inc. ... 3.60 2.27% 24353 97 98 ARYD ARYA Sciences Acquisition Corp IV ... 10.16 -0.26% 2014 98 99 ASLN ASLAN Pharmaceuticals Limited ... 2.87 6.30% 218557 99 100 ASMB Assembly Biosciences, Inc. ... 3.51 2.03% 206015 [100 rows x 11 columns] Traceback (most recent call last): File "C:\Users\yanli\.spyder-py3\temp.py", line 20, in <module> tables1 = pd.read_html(screen) File "C:\Non-system\Anaconda\lib\site-packages\pandas\util\_decorators.py", line 296, in wrapper return func(*args, **kwargs) File "C:\Non-system\Anaconda\lib\site-packages\pandas\io\html.py", line 1086, in read_html return _parse( File "C:\Non-system\Anaconda\lib\site-packages\pandas\io\html.py", line 917, in _parse raise retained File "C:\Non-system\Anaconda\lib\site-packages\pandas\io\html.py", line 898, in _parse tables = p.parse_tables() File "C:\Non-system\Anaconda\lib\site-packages\pandas\io\html.py", line 217, in parse_tables tables = self._parse_tables(self._build_doc(), self.match, self.attrs) File "C:\Non-system\Anaconda\lib\site-packages\pandas\io\html.py", line 547, in _parse_tables raise ValueError("No tables found") ValueError: No tables found
Could you post a more minimal example? https://matthewrocklin.com/blog/work/2018/02/28/minimal-bug-reports
Going to close for now, happy to reopen if you can provide a minimal example
Question about pandas
Note: The program can run only 4 times in the for loop(like 1-5) and then the error comes out
Traceback