FIX: #3288. Added a simple retry for inputs for a node.

[sulantha2006]

Summary

Fixes #3288

Acknowledgment

• (Mandatory) I acknowledge that this contribution will be available under the Apache 2 license.

[codecov]

Codecov Report

Merging #3289 (87ab436) into master (47fe00b) will decrease coverage by 0.00%.
The diff coverage is 47.05%.

@@            Coverage Diff             @@
##           master    #3289      +/-   ##
==========================================
- Coverage   64.70%   64.69%   -0.01%     
==========================================
  Files         302      302              
  Lines       39869    39882      +13     
  Branches     5288     5291       +3     
==========================================
+ Hits        25796    25802       +6     
- Misses      12984    12989       +5     
- Partials     1089     1091       +2     

Flag	Coverage Δ
unittests	64.69% <47.05%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
nipype/utils/config.py	62.22% <ø> (ø)
nipype/pipeline/engine/nodes.py	77.49% <47.05%> (-0.66%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 47fe00b...87ab436. Read the comment docs.