**Python Standard Library (10)
**
Dictionaries,
Priority Queues,
Set Data Structures,
Sorting |
**luigi (9)
**
Job Scheduling |

**pygtrie (8)
**
Suffix Trees and Arrays |
**cudamat (8)
**
Solving Linear Equations |

**scipy (8)
**
Bandwidth Reduction |
**pulp (8)
**
Linear Programming |

**mpmath (8)
**
Arbitrary-Precision Arithmetic |
**pysparnn (8)
**
Nearest Neighbor Search,
Range Search |

**fuzzywuzzy (8)
**
String Matching,
Approximate String Matching,
Longest Common Substring/Subsequence |
**networkx (7)
**
Graph Data Structures |

**simanneal (7)
**
Constrained and Unconstrained Optimization |
**libnum (7)
**
Factoring and Primality Testing |

**lopq (7)
**
Nearest Neighbor Search |
**cryptography (7)
**
Cryptography |

**transitions (7)
**
Finite State Machine Minimization |
**PyMaxflow (6)
**
Network Flow |

**tsp-solver (6)
**
Traveling Salesman Problem |
**Delaunay_Triangulation (6)
**
Voronoi Diagrams |

**setcover (6)
**
Set Cover,
Set Packing |
**SetCoverPy (6)
**
Set Cover,
Set Packing |

**chinese-postman (5)
**
Eulerian Cycle/Chinese Postman |
**pymag-trees (5)
**
Drawing Trees |

**MaxIndependentSet (5)
**
Independent Set |
**fraciso (5)
**
Graph Isomorphism |

**MAS-Solver (5)
**
Feedback Edge/Vertex Set |
**point-location (5)
**
Point Location |

**rdp (5)
**
Simplifying Polygons |