Install Python Specific version upgrade or downgrade and Also Virtual Environment with the specific Python Version

1. install python 3.7 and 3.7 virtual env 

**********************************

sudo add-apt-repository ppa:deadsnakes/ppa

sudo apt update

sudo apt install python3.7

sudo apt install python3.7-venv

2. create environment

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#goto your project root folder

python3.7 -m venv env3.7

source env3.7/bin/activate

now check version, all same

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python3 --version

python --version

python3.7 --version

pip --version

pip3 --version

3. upgrade pip

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python3.7 -m pip install --upgrade pip

Sonarqube Setup and Upgrade

Setup and Upgrade

To give a quick try at SonarQube, just follow the tutorial below.
To install a production instance, follow the installation guide.
To upgrade your SonarQube instance, read the upgrade guide and the related upgrade notes.

Get Started in Two Minutes

1. Download and unzip the SonarQube distribution (let's say in "C:\sonarqube" or "/etc/sonarqube")

2. Start the SonarQube server:

# On Windows, execute: C:\sonarqube\bin\windows-x86-xx\StartSonar.bat  # On other operating system, execute: /etc/sonarqube/bin/[OS]/sonar.sh console

3. Download and unzip the SonarQube Runner (let's say in "C:\sonar-runner" or "/etc/sonar-runner")

4. Download and unzip some project samples (let's say in "C:\sonar-examples" or "/etc/sonar-examples")

5. Analyze a project:

# On Windows: cd C:\sonar-examples\projects\languages\java\sonar-runner\java-sonar-runner-simple C:\sonar-runner\bin\sonar-runner.bat # On other operating system: cd /etc/sonar-examples/projects/languages/java/sonar-runner/java-sonar-runner-simple /etc/sonar-runner/bin/sonar-runner

6. Browse the results at http://localhost:9000 (default System administrator credentials are admin/admin)

7. open x:\apache-maven-3.2.3\conf\settings.xml, paste under  (optional)

 <settings>
    <pluginGroups>
        <pluginGroup>org.sonarsource.scanner.maven</pluginGroup>
    </pluginGroups>
    <profiles>
        <profile>
            <id>sonar</id>
            <activation>
                <activeByDefault>true</activeByDefault>
            </activation>
            <properties>
                <!-- Optional URL to server. Default value is http://localhost:9000 -->
                <sonar.host.url>
                  http://myserver:9000
                </sonar.host.url>
            </properties>
        </profile>
     </profiles>
</settings>

           
       


8. in your project root pom.xml,
 8.1  paste under 
 UTF-8
java


8.2paste under
               

 <build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>sonar-maven-plugin</artifactId>
<version>2.6</version>
</plugin>
</plugins>
</pluginManagement>
</build>                    

               
OR

       <build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.sonarsource.scanner.maven</groupId>
<artifactId>sonar-maven-plugin</artifactId>
<version>3.6.0.1398</version>
</plugin>
</plugins>
</pluginManagement>
</build>

9. Go to cmd, your project root folder and type 




mvn clean install

mvn sonar:sonar

10. goto http://localhost:9000  [under projects you can see the reports]

11. If you want Html report

mvn sonar:sonar -Dsonar.analysis.mode=preview -Dsonar.issuesReport.html.enable=true

under your /target/sonar/issues-report folder you can see the html

http://docs.sonarqube.org/display/SONAR/Setup+and+Upgrade