1 | import os |
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2 | |
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3 | def mask_and(a, b): |
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4 | assert(len(a)==len(b)) |
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5 | return [ a[i] & b[i] for i in xrange(len(a)) ] |
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6 | |
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7 | def mask_or(a, b): |
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8 | assert(len(a)==len(b)) |
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9 | return [ a[i] | b[i] for i in xrange(len(a)) ] |
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10 | |
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11 | def mask_not(a): |
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12 | return [ not i for i in a ] |
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13 | |
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14 | def _n_bools(n, val): |
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15 | return [ val for i in xrange(n) ] |
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16 | |
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17 | def _is_sequence_or_number(param, ptype=int): |
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18 | if isinstance(param,tuple) or isinstance(param,list): |
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19 | if len(param) == 0: return True # empty list |
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20 | out = True |
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21 | for p in param: |
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22 | out &= isinstance(p,ptype) |
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23 | return out |
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24 | elif isinstance(param, ptype): |
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25 | return True |
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26 | return False |
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27 | |
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28 | def _to_list(param, ptype=int): |
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29 | if isinstance(param, ptype): |
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30 | if ptype is str: return param.split() |
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31 | else: return [param] |
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32 | if _is_sequence_or_number(param, ptype): |
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33 | return param |
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34 | return None |
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35 | |
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36 | def unique(x): |
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37 | """ |
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38 | Return the unique values in a list |
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39 | Parameters: |
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40 | x: the list to reduce |
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41 | Examples: |
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42 | x = [1,2,3,3,4] |
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43 | print unique(x) |
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44 | [1,2,3,4] |
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45 | """ |
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46 | return dict([ (val, 1) for val in x]).keys() |
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47 | |
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48 | def list_files(path=".",suffix="rpf"): |
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49 | """ |
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50 | Return a list files readable by asap, such as rpf, sdfits, mbf, asap |
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51 | Parameters: |
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52 | path: The directory to list (default '.') |
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53 | suffix: The file extension (default rpf) |
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54 | Example: |
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55 | files = list_files("data/","sdfits") |
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56 | print files |
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57 | ['data/2001-09-01_0332_P363.sdfits', |
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58 | 'data/2003-04-04_131152_t0002.sdfits', |
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59 | 'data/Sgr_86p262_best_SPC.sdfits'] |
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60 | """ |
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61 | if not os.path.isdir(path): |
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62 | return None |
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63 | valid = "ms rpf rpf.1 rpf.2 sdf sdfits mbf asap".split() |
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64 | if not suffix in valid: |
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65 | return None |
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66 | files = [os.path.expanduser(os.path.expandvars(path+"/"+f)) for f in os.listdir(path)] |
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67 | return filter(lambda x: x.endswith(suffix),files) |
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68 | |
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69 | def page(message): |
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70 | """Run the input message through a pager. This is only done if |
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71 | ``rcParams["verbose"]`` is set. |
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72 | """ |
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73 | verbose = False |
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74 | try: |
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75 | from asap.parameters import rcParams |
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76 | verbose = rcParams['verbose'] |
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77 | except: |
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78 | pass |
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79 | if verbose: |
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80 | try: |
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81 | from IPython.genutils import page as pager |
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82 | except ImportError: |
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83 | from pydoc import pager |
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84 | pager(message) |
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85 | return None |
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86 | else: |
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87 | return message |
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