Syntastic is a syntax checking plugin that runs files through external syntax checkers and displays any resulting errors to the user. This can be done on demand, or automatically as files are saved. If syntax errors are detected, the user is notified and is happy because they didn't have to compile their code or execute their script to find them.

SAM (Sequence Alignment/Map) format is a generic format for storing large nucleotide sequence alignments. Picard Tools includes these utilities to manipulate SAM and BAM files: AddCommentsToBam FifoBuffer AddOrReplaceReadGroups FilterSamReads BaitDesigner FilterVcf BamIndexStats FixMateInformation GatherBamFiles BedToIntervalList GatherVcfs BuildBamIndex GenotypeConcordance CalculateHsMetrics IlluminaBasecallsToFastq CalculateReadGroupChecksum IlluminaBasecallsToSam CheckIlluminaDirectory LiftOverIntervalList CheckTerminatorBlock LiftoverVcf CleanSam MakeSitesOnlyVcf CollectAlignmentSummaryMetrics MarkDuplicates CollectBaseDistributionByCycle MarkDuplicatesWithMateCigar CollectGcBiasMetrics MarkIlluminaAdapters CollectHiSeqXPfFailMetrics MeanQualityByCycle CollectIlluminaBasecallingMetrics MergeBamAlignment CollectIlluminaLaneMetrics MergeSamFiles CollectInsertSizeMetrics MergeVcfs CollectJumpingLibraryMetrics NormalizeFasta CollectMultipleMetrics PositionBasedDownsampleSam CollectOxoGMetrics QualityScoreDistribution CollectQualityYieldMetrics RenameSampleInVcf CollectRawWgsMetrics ReorderSam CollectRnaSeqMetrics ReplaceSamHeader CollectRrbsMetrics RevertOriginalBaseQualitiesAndAddMateCigar CollectSequencingArtifactMetrics RevertSam CollectTargetedPcrMetrics SamFormatConverter CollectVariantCallingMetrics SamToFastq CollectWgsMetrics ScatterIntervalsByNs CompareMetrics SortSam CompareSAMs SortVcf ConvertSequencingArtifactToOxoG SplitSamByLibrary CreateSequenceDictionary SplitVcfs DownsampleSam UpdateVcfSequenceDictionary EstimateLibraryComplexity ValidateSamFile ExtractIlluminaBarcodes VcfFormatConverter ExtractSequences VcfToIntervalList FastqToSam ViewSam

urllib3 supports features left out of urllib and urllib2 libraries.

GAP is a system for computational discrete algebra, with particular emphasis on Computational Group Theory. GAP provides a programming language, a library of thousands of functions implementing algebraic algorithms written in the GAP language as well as large data libraries of algebraic objects. GAP is used in research and teaching for studying groups and their representations, rings, vector spaces, algebras, combinatorial structures, and more.

The strongSwan VPN suite uses the native IPsec stack in the standard Linux kernel. It supports both the IKEv1 and IKEv2 protocols.