Selenium WebDriver - Cannot get it working Centos 7

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• Error non-linear-regression python curve-fit

  Hello guys i want to make non-linear regression in python with curve fit this is my code:

  #fit a fourth degree polynomial to the economic data
  from numpy import arange
  from scipy.optimize import curve_fit
  from matplotlib import pyplot
  import math
  
  x = [17.47,20.71,21.08,18.08,17.12,14.16,14.06,12.44,11.86,11.19,10.65]
  y = [5,35,65,95,125,155,185,215,245,275,305]
  
  # define the true objective function
  def objective(x, a, b, c, d, e):
      return ((a)-((b)*(x/3-5)))+((c)*(x/305)**2)-((d)*(math.log(305))-math.log(x))+((e)*(math.log(305)-(math.log(x))**2))
  
  popt, _ = curve_fit(objective, x, y)
  # summarize the parameter values
  a, b, c, d, e = popt
  # plot input vs output
  pyplot.scatter(x, y)
  # define a sequence of inputs between the smallest and largest known inputs
  x_line = arange(min(x), max(x), 1)
  # calculate the output for the range
  y_line = objective(x_line, a, b, c, d, e)
  # create a line plot for the mapping function
  pyplot.plot(x_line, y_line, '--', color='red')
  pyplot.show()
  

  this is my error :

  Traceback (most recent call last): File "C:\Users\Fahmi\PycharmProjects\pythonProject\main.py", line 16, in popt, _ = curve_fit(objective, x, y) File "C:\Users\Fahmi\PycharmProjects\pythonProject\venv\lib\site-packages\scipy\optimize\minpack.py", line 784, in curve_fit res = leastsq(func, p0, Dfun=jac, full_output=1, **kwargs) File "C:\Users\Fahmi\PycharmProjects\pythonProject\venv\lib\site-packages\scipy\optimize\minpack.py", line 410, in leastsq shape, dtype = _check_func('leastsq', 'func', func, x0, args, n) File "C:\Users\Fahmi\PycharmProjects\pythonProject\venv\lib\site-packages\scipy\optimize\minpack.py", line 24, in _check_func res = atleast_1d(thefunc(((x0[:numinputs],) + args))) File "C:\Users\Fahmi\PycharmProjects\pythonProject\venv\lib\site-packages\scipy\optimize\minpack.py", line 484, in func_wrapped return func(xdata, params) - ydata File "C:\Users\Fahmi\PycharmProjects\pythonProject\main.py", line 13, in objective return ((a)-((b)(x/3-5)))+((c)(x/305)**2)-((d)(math.log(305))-math.log(x))+((e)(math.log(305)-(math.log(x))**2)) TypeError: only size-1 arrays can be converted to Python scalars

  thanks before
• beautifulsoup (webscraping) not updating variables when HTML text has changed

  I am new to python and I cant understand why this isn't working, but I've narrowed down the issue to one line of code.

  The purpose of this bot is to scrape HTML from a website (using beautiful and post to discord when the text changes. I use FC2 and FR2 (flightcategory2 and flightrestrictions2) as memory variables for the code to check against every time it runs. If they're the same, the code waits for _ minutes and checks again, if they're different it posts it.

  However when running this code, the variables "flightCategory" "flightRestrictions" change the first time the code runs, but for some reason stop changing when the HTML text on the website changes. the line in question is this if loop.

  if 1==1: # using 1==1 so this loop constantly runs for testing, otherwise I have it set for a time
          flightCategory, flightRestrictions = und.getInfo()
         
  

  When debugging mode, the code IS run, but the variables in the code don't update, and I am confused as to why they would update the first time the code is run, but not sequential times. This line is critical to the operation of my code.

  Here's an abbreviated version of the code to make it easier to read. I'd appreciate any help.

  FC2 = 0
  FR2 = 0
  flightCategory = ""
  flightRestrictions = ""
  
  class UND:
      def __init__(self):
          page = requests.get("http://sof.aero.und.edu")
          self.soup = BeautifulSoup(page.content, "html.parser")
  
      def getFlightCategory(self):    # Takes the appropriate html text and sets it to a variable
          flightCategoryClass = self.soup.find(class_="auto-style1b")
          return flightCategoryClass.get_text()
  
      def getRestrictions(self):  # Takes the appropriate html text and sets it to a variable
          flightRestrictionsClass = self.soup.find(class_="auto-style4")
          return flightRestrictionsClass.get_text()
  
      def getInfo(self):
          return self.getFlightCategory(), self.getRestrictions()
  
  und = UND()
  while 1 == 1:
      if 1==1:    #using 1==1 so this loop constantly runs for testing, otherwise I have it set for a time
          flightCategory, flightRestrictions = und.getInfo()   (scrape the html from the web)
          if flightCategory == FC2 and flightRestrictions == FR2:  # if previous check is the same as this check then skip posting
              Do Something
          elif flightCategory != FC2 or flightRestrictions != FR2:  # if any variable has changed since the last time
              FC2 = flightCategory  # set the comparison variable to equal the variable
              FR2 = flightRestrictions
              if flightRestrictions == "Manager on Duty:":  # if this is seen only output category
                 Do Something
              elif flightRestrictions != "Manager on Duty:":
                  Do Something
      else:
          print("Outside Time")
          time.sleep(5)  # Wait _ seconds. This would be set for 30 min but for testing it is 5 seconds. O
  
  
• Need to reload vosk model for every transcription?

  The vosk model that I'm using is vosk-model-en-us-aspire-0.2 (1.4GB). Every time need quite amount of time to load the vosk model. Is it necessary to recreate the vosk object for every time? It take many time to load the model, if we only load model once. It can save up at least half of the time.
• Can not find file that is in resource folder - java

  I have a question regarding file handling. I automate a page using selenium, and I need to upload a file in this page. I want to put the file in resource folder and read it's path in the test (since many OS and path will be different to any computer WIN/MAC).

  I put the file manually in the resource folder, and it put it in:

  X:\Project_11_01_2021\src\test\resources
  

  when I used the ClassLoader and try to find the file it not found it, I saw that if I manually put it in this path it find it, found.

  X:\Project_11_01_2021\out\test\resources
  

  the problem is that I am using git and if I add to the resources it upload to git and every one will get the change, and when I put in out\test\resources it is not displayed in the source tree to commit to git. is their a way that classLoader will search in the first location? and not in the second?

  [][path that worked]

  [][when here not worked]

  /******* test *******/

  public  void entertax() throws Exception {
      WebDriver deiver2 = getWebDriver();
    
      Thread.sleep(1000);
      ClassLoader classLoader = getClass().getClassLoader();
      String path = classLoader.getResource("TAX12.pdf").getPath();
      System.out.println("\n\n path is  " + path);
      deiver2.switchTo()
              .activeElement();
      deiver2.findElement(By.xpath("//input[@type='file']"))
      .sendKeys(
              "X:\\Project_11_01_2021\\out\\test\\resources\\fw8TAX12.pdf");
  
  
  
      System.out.println("END");
  
  }
  
• Can not get file path from resource folder - Java

  I try to automate a page that I have. In the page I need to upload a PDF file. The problem is that I want selenium via java will get the file from the resource of the project and not hard coded. (since some have windows and some mac and some ubonto so the solution is to get the path dynamically).

  I manually hard coded I enter the path it worked and return the path, however to let java return the path it crash. this is my code:

    /******* test *******/
      public  void testFileUpload() throws Exception {
          WebDriver deiver2 = getWebDriver();
        
  
          Thread.sleep(3000);
          deiver2.switchTo()
                  .activeElement();
          deiver2.findElement(By.xpath("//input[@type='file']"))
          .sendKeys(
                  "X:\\project\\src\\test\\resources\\TAX12.pdf");
  
          ClassLoader classLoader = getClass().getClassLoader();
          String path = classLoader.getResource("TAX12.pdf").getPath();
          System.out.println("\n\n path is  " + path);
  
          System.out.println("END");
  
      }
  

  I want in the send keys to send the file, the exists however it is not worked. get null exception

  the file exists in the folder and worked if manually set the path, but not locate the file if I want it to do it by himself (for win / mac / linux etc)

  
• Can not get file path from resource folder - Java (exception)

  I try to automate a page that I have. In the page I need to upload a PDF file. The problem is that I want selenium via java will get the file from the resource of the project and not hard coded. (since some have windows and some mac and some ubonto so the solution is to get the path dynamically).

  I manually hard coded I enter the path it worked and return the path, however to let java return the path it crash. this is my code:

    /******* test *******/
      public  void testFileUpload() throws Exception {
          WebDriver deiver2 = getWebDriver();
        
  
          Thread.sleep(3000);
          deiver2.switchTo()
                  .activeElement();
          deiver2.findElement(By.xpath("//input[@type='file']"))
          .sendKeys(
                  "X:\\project\\src\\test\\resources\\TAX12.pdf");
  
          ClassLoader classLoader = getClass().getClassLoader();
          String path = classLoader.getResource("TAX12.pdf").getPath();
          System.out.println("\n\n path is  " + path);
  
          System.out.println("END");
  
      }
  

  I want in the send keys to send the file, the exists however it is not worked.

  java.lang.NullPointerException
  
      at org.testng.Assert.fail(Assert.java:97)
      at tests.ExPubPaymentPageTest.tryFile(ExPubPaymentPageTest.java:58)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:498)
      at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:134)
      at org.testng.internal.TestInvoker.invokeMethod(TestInvoker.java:597)
      at org.testng.internal.TestInvoker.invokeTestMethod(TestInvoker.java:173)
      at org.testng.internal.MethodRunner.runInSequence(MethodRunner.java:46)
      at org.testng.internal.TestInvoker$MethodInvocationAgent.invoke(TestInvoker.java:816)
      at org.testng.internal.TestInvoker.invokeTestMethods(TestInvoker.java:146)
      at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:146)
      at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:128)
      at java.util.ArrayList.forEach(ArrayList.java:1259)
      at org.testng.TestRunner.privateRun(TestRunner.java:766)
      at org.testng.TestRunner.run(TestRunner.java:587)
      at org.testng.SuiteRunner.runTest(SuiteRunner.java:384)
      at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:378)
      at org.testng.SuiteRunner.privateRun(SuiteRunner.java:337)
      at org.testng.SuiteRunner.run(SuiteRunner.java:286)
      at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:53)
      at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:96)
      at org.testng.TestNG.runSuitesSequentially(TestNG.java:1187)
      at org.testng.TestNG.runSuitesLocally(TestNG.java:1109)
      at org.testng.TestNG.runSuites(TestNG.java:1039)
      at org.testng.TestNG.run(TestNG.java:1007)
      at com.intellij.rt.testng.IDEARemoteTestNG.run(IDEARemoteTestNG.java:66)
      at com.intellij.rt.testng.RemoteTestNGStarter.main(RemoteTestNGStarter.java:109)
  

  the file exists in the folder and worked if manually set the path, but not locate the file if I want it to do it by himself (for win / mac / linux etc)

  
• Can you scale any video on chrome

  There are chances you come across videos where the aspect ration is not 1:1 .

  And you so wished it occupied the entire screen.
• Will too many uBlock Origin filters slow down or affect my browsing experience?

  I am currently running uBO in Chrome. I am a little paranoid about tech, so I decided to put in my own filters. I got a malware blocking list from the Github project "Blocklistproject", and it has currently over 450,000 network filters. I had around 160,000 network filters before that and had a smooth browsing experience. Will my new filters affect or slow down my browsing experience? Thank you.
• How can I interrupt a Reader when it "hangs" (need a timeout on Reader.read() )

  This question is related to a situation that occurred when using Chrome Serial API but probably could be relevant to any ReadableStream. I studied the documentation and probably missed some feature or pattern.

  A simple program is running in Chrome browser, accessing CW keyer (based on Arduino, but this is not important).

  The application sends a command to the keyer and expects two binary bytes or a string as a response (particular format depends on the command sent and is not important).

  In case that the serial device (not the USB/serial adapter, but the Arduino) misses the command for whatever reason, response is never sent and the function expectResponse() below will never return any data, nor will it throw any exception. As a result, the Reader remains locked, the ReadableStream therefore cannot be closed and as a consequence, the serial port cannot be closed either.

  Also, depending on the application structure, in case of other command sent successfully to the keyer, it may be not possible to read the second response because the first reader blocks the stream and until it is released, new Reader cannot be created.

  
  async function expectResponse( serialPort ) {
     const reader = serialPort.readable.getReader() ;
     let { value, done } = await reader.read() ; // this never returns because no data arrive, not possible to "break"
  }
  
  async function disconnect( serialPort ) {
     // ... some cleanup ...
     // naive attempt to unlock ReadableStream before closing 
     await serialPort.readable.getReader().releaseLock() // this will throw exception - cannot create  new reader while another one is still active and locks the stream
     // ...
     await serialPort.close(); // this will throw exception - cannot close port because readable stream is locked
  }
  

  serialPort is the object returned by navigator.serial.requestPort()

  I am convinced I must have missed something important in API docs (ReadableStream or Reader API, not Serial API), but I did not find solution.

  P.S. in the real app serialPort is a global variable, but it does not matter, does it?