python

问题 I have a 2D list of booleans. I want to select a random index from the the list where the value is False . For example, given the following list: [[True, False, False], [True, True, True], [False, True, True]] The valid choices would be: [0, 1] , [0, 2] , and [2, 0] . I could keep a list of valid indices and then use random.choice to select from it, but it seems unpythonic to keep a variable and update it every time the underlying list changes for only this one purpose. Bonus points if your

问题 I have a 2D list of booleans. I want to select a random index from the the list where the value is False . For example, given the following list: [[True, False, False], [True, True, True], [False, True, True]] The valid choices would be: [0, 1] , [0, 2] , and [2, 0] . I could keep a list of valid indices and then use random.choice to select from it, but it seems unpythonic to keep a variable and update it every time the underlying list changes for only this one purpose. Bonus points if your

问题 Even though I'm very new with python, I can't understand how I haven't been able to solve this issue / take a right approach. So any help, link to a helpful tutorial is appreciated highly as I have to do this kind of stuff from time to time. I have a CSV file that I need to reformat / modify a bit. I need to store the amount of samples that the gene is in. input file: AHCTF1: Sample1, Sample2, Sample4 AHCTF1: Sample2, Sample7, Sample12 AHCTF1: Sample5, Sample6, Sample7 result: AHCTF1 in 7

问题 Even though I'm very new with python, I can't understand how I haven't been able to solve this issue / take a right approach. So any help, link to a helpful tutorial is appreciated highly as I have to do this kind of stuff from time to time. I have a CSV file that I need to reformat / modify a bit. I need to store the amount of samples that the gene is in. input file: AHCTF1: Sample1, Sample2, Sample4 AHCTF1: Sample2, Sample7, Sample12 AHCTF1: Sample5, Sample6, Sample7 result: AHCTF1 in 7

问题 Even though I'm very new with python, I can't understand how I haven't been able to solve this issue / take a right approach. So any help, link to a helpful tutorial is appreciated highly as I have to do this kind of stuff from time to time. I have a CSV file that I need to reformat / modify a bit. I need to store the amount of samples that the gene is in. input file: AHCTF1: Sample1, Sample2, Sample4 AHCTF1: Sample2, Sample7, Sample12 AHCTF1: Sample5, Sample6, Sample7 result: AHCTF1 in 7

问题 Even though I'm very new with python, I can't understand how I haven't been able to solve this issue / take a right approach. So any help, link to a helpful tutorial is appreciated highly as I have to do this kind of stuff from time to time. I have a CSV file that I need to reformat / modify a bit. I need to store the amount of samples that the gene is in. input file: AHCTF1: Sample1, Sample2, Sample4 AHCTF1: Sample2, Sample7, Sample12 AHCTF1: Sample5, Sample6, Sample7 result: AHCTF1 in 7

问题 Even though I'm very new with python, I can't understand how I haven't been able to solve this issue / take a right approach. So any help, link to a helpful tutorial is appreciated highly as I have to do this kind of stuff from time to time. I have a CSV file that I need to reformat / modify a bit. I need to store the amount of samples that the gene is in. input file: AHCTF1: Sample1, Sample2, Sample4 AHCTF1: Sample2, Sample7, Sample12 AHCTF1: Sample5, Sample6, Sample7 result: AHCTF1 in 7

问题 I am running VS Code (Version 1.52) with extensions Jupyter Notebook (2020.12) and Python (2020.12) on MacOS Catalina. Context: I have problems getting Intellisense to work properly in my Jupyter Notebooks in VS Code. Some have had some success with adding these config parameters to the global settings of VS Code: "python.dataScience.runStartupCommands": [ "%config IPCompleter.greedy=True", "%config IPCompleter.use_jedi = False" ] I went ahead and added those as well but then had to realize

问题 Please close if this is a duplicate, but this answer does not answer my question as I would like to print a list, not elements from a list. For example, the below does not work: mylist = [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15] print(%3s % mylist) Desired output: [ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15] Basically, if all items in the list are n digits or less, equal spacing would give each item n+1 spots in the printout. Like setw in c++. Assume n is known. If I have missed a similar SO

问题 Please close if this is a duplicate, but this answer does not answer my question as I would like to print a list, not elements from a list. For example, the below does not work: mylist = [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15] print(%3s % mylist) Desired output: [ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15] Basically, if all items in the list are n digits or less, equal spacing would give each item n+1 spots in the printout. Like setw in c++. Assume n is known. If I have missed a similar SO