pytest/pylint/flake8/mypy to Jenkins xunit plugin converter (used with Custom tool type)

pytest-xunit.xsl

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                xmlns:xs="http://www.w3.org/2001/XMLSchema" exclude-result-prefixes="xs" version="1.0">
    <xsl:output method="xml" indent="yes" encoding="UTF-8"
                cdata-section-elements="system-out system-err failure"/>
    <xsl:decimal-format decimal-separator="." grouping-separator=","/>

    <xsl:template match="testsuites">
        <testsuites>
            <xsl:apply-templates select="testsuite"/>
        </testsuites>
    </xsl:template>

    <xsl:template match="testsuite">
        <testsuite>
            <xsl:if test="@name">
                <xsl:attribute name="name">
                    <xsl:value-of select="@name"/>
                </xsl:attribute>
            </xsl:if>
            <xsl:if test="@tests">
                <xsl:attribute name="tests">
                    <xsl:value-of select="@tests"/>
                </xsl:attribute>
            </xsl:if>
            <xsl:if test="@errors">
                <xsl:attribute name="errors">
                    <xsl:value-of select="@errors"/>
                </xsl:attribute>
            </xsl:if>
            <xsl:if test="@failures">
                <xsl:attribute name="failures">
                    <xsl:value-of select="@failures"/>
                </xsl:attribute>
            </xsl:if>
            <xsl:if test="@skips">
                <xsl:attribute name="skipped">
                    <xsl:value-of select="@skips"/>
                </xsl:attribute>
            </xsl:if>
            <xsl:if test="@time">
                <xsl:attribute name="time">
                    <xsl:value-of select="@time"/>
                </xsl:attribute>
            </xsl:if>

            <xsl:apply-templates select="testcase"/>
        </testsuite>
    </xsl:template>

    <xsl:template match="testcase">
        <testcase>
            <xsl:if test="@classname">
                <xsl:attribute name="classname">
                    <xsl:value-of select="../@name"></xsl:value-of><xsl:text>.</xsl:text><xsl:value-of select="@classname"/>
                </xsl:attribute>
            </xsl:if>
            <xsl:if test="@name">
                <xsl:attribute name="name">
                    <xsl:value-of select="@name"/>
                </xsl:attribute>
            </xsl:if>
            <xsl:if test="@time">
                <xsl:attribute name="time">
                    <xsl:value-of select="@time"/>
                </xsl:attribute>
            </xsl:if>
            <xsl:if test="error">
                <xsl:copy-of select="error"/>
            </xsl:if>
            <xsl:if test="failure">
                <xsl:copy-of select="failure"/>
            </xsl:if>
        </testcase>
    </xsl:template>
</xsl:stylesheet>